Yes, MOS was nearly 3 years ago while I am once again addressing it (to some extent), but given that BVS is right around the corner from release, it's perfectly reasonable I would say. Many detractors dislike MOS so passionately that they strongly believe that WB/DC is trying to make amends to them by addressing the destruction they so much complained about among other things. The destruction, like I said MANY times before, is a recurring theme in Superman comics, but more importantly, it was ALWAYS going to be addressed regardless of the fans' viewpoints. The most recent proof is an interview with Superman himself Henry Cavill, which was released on this site by @Kr08 on 01/04/2016. Henry said (point made in bold),
"The reception of my first Superman movie, from what I've read, was fairly mixed. Everyone I've spoken to enjoyed the movie, but [not] unlike if you're going to meet a stranger in the street, they're not going to badmouth you to your face. There's no intentional move, I don't think, in Batman v. Superman to address any issues that people had with Man of Steel. It's just a continuation of that storyline and they continue to develop that world and introduce new characters."
That pretty much means WB/DC are accepting EVERYTHING that has happened in MOS regardless of fan reactions. In essence, they really don't care what detractors have to say. In fact, while these people continue to make the claim of BVS being a "recompense" for MOS, they fail to understand that WB/DC has NEVER cared for their opinions at all. The proof has been there since before even MOS came out. That being said, I ask this. If the studio really cared for negative opinions, why has the following occurred in spite of CLEAR nitpicking and criticism?
1. Edgy Superman- On 04/11/2012, a year and two months before MOS' release, Kent actor Dylan Sprayberry made it absolutely clear what kind of Superman we would be getting. He said the aim was to,
"make it more realistic and emotional so it's not just the all-american superhero that saves everyone. He has dilemmas and love and struggles throughout the whole movie, especially when he's a kid."
If this description generated bad reception, chances are actually seeing Supes like this in the final product would be worse; and for many, it was. Regardless, because the studio decided to take this route despite these complaints, the answer if whether or not they care is "no".
2. No briefs Superman- I was surprised at how many people hated the lack of trunks not being there. I was even more surprised when I learned Zack looked through hundreds of different versions of them and desperately wanted them in the film, but ultimately realized it was far too silly for the take on Superman he was attempting. And because the studio let this slide, the answer if whether or not they care about the bad reception to the decision is "no".
3. Superman killing Zod- I am not going to spend a lot of time on this or reiterate in detail the fact that Superman has killed at least a handful of times in comics. I am only going to say that WB/DC were with Nolan and Goyer and against Zack on this until his explanation convinced them to relent. And because they relented, KNOWING FULL-WELL that this scene would have serious backlash within Superman fandom, the answer to the question if whether or not they cared about such a bad reception is "No".
4. Doomsday- I was actually in the camp of people who hated the idea of Doomsday appearing so soon, as Superman has only just begun his official career. However, when I learned that rumors suggested that he would be similar to his version in the DCAU, I got over it. But others obviously didn't, especially when he finally appeared in the most recent trailer. They unflatteringly compared his appearance to a troll, a ninja turtle, and the MCU Abomination (which isn't even a fair comparison, as his appearance in the film compared to the comics was extremely inaccurate, anyway); ignorant to the possibility of him evolving during the fight to look more traditional. The fact that WB/DC has yet to comment on Doomsday's appearance in fan-related detail means the question if whether or not they care about the bad response is what? Aye...NO.
5. Cast of Characters- One of the more annoying criticisms is the casting backlash; Ben Affleck, Gal Gadot, Jesse Eisenberg (especially), and Ezra Miller. The annoyance factor isn't even due to the obviousness of an actor's function being to push the boundaries of their skills and convey a convincing performance of a character they have nothing in common with. No. It's the factor of having very pathetic reasoning. Many can't forgive Ben for Daredevil, believing solely for this reason that he is undeserving of the Batman mantle despite the fact that that was a completely different period of his career. Many believe Gal cannot pull off Wonder Woman due to being "skinny" and "flatchested". Groan. Others feel Ezra is too effeminate and Asian-looking to portray the Flash (though clearly, many of them would desire to see Grant Gustin for obvious reasons). Still, belief is maintained in Jesse's inability to play Luthor due to his being youthful in physical appearance and habitual in comedic roles; also adding that Bryan Cranston should have had the role. And speaking of Bryan Cranston, he said it best when speaking of an actor's abilities and not being cast as Lex,
"Not one conversation [about Lex Luthor]. It was all fan-driven. They're thinking, 'Who can play Lex Luthor? Who's bald? Who can be menacing? Oh! Walter White! We can get that guy.' And it's like, it's not very inspiring casting."
No, it isn't. And it defeats the purpose of an actor's ambition. Still, because WB/DC allowed Zack to move on with his casting decisions, the question of whether or not they care about the reception to such casting is as clear as day: Nein (no).
6. Characters' Appearances- Lastly, we have the look of the characters that many are not at all okay with. Many like Batfleck's suit, but hate the short ears and fatbat symbol despite referencing TDKR. Many hate that Wonder Woman's costume seems darker and is devoid of the leotard-like look in exchange for a skirt despite the fact that she has only appeared in dark environments (which means it would look different in the light like Superman's in BVS) and the fact that Wonder Woman has worn a skirt before in comics during her first appearance in the Golden Age and during Jim Lee's run. Others complain about Aquaman's general appearance despite the fact that he has had long hair and a beard before in the 90s comics. Still, many desire to roll their eyes at the site of a smaller Luthor with hair, despite the fact that it's Luthor's intelligence and demeanor that makes him a serious threat (not his stature) and the fact that he is CLEARLY destined to lose his hair at some point. And finally, while we haven't seen Ezra's suit, he described it as "post-apocalyptic", which many groaned at despite it being in keeping with the tone of the DCEU. However, like before, because WB/DC gave the go-head on these appearances, it is once again quite clear that the studio's level of care towards the bad reception is a nyet (no).
Despite all of the detractors' complaints, cursing, trolling, and even threats, all of this has taken place and will only grow down the line. That being said, I finally make my point via a question: Can anyone honestly believe that based on all of this evidence that the studio decided to respond to fan reactions by addressing the destruction rather than it actually being in the plans all along? Especially when MOS in many ways takes from the comics (destruction being a recurring theme in Superman comics, especially during alien invasions and super-powered showdowns)? Also, what makes people think WB/DC, very busy and very intelligent people, waste their valuable time reading blogs and threads from people they don't know and are quite likely below their age group? It's nonsensically illogical. They NEVER listen to these people. They NEVER make decisions based on scattered reception. And they will NEVER allow some petty verbal and online backlash stop them from moving forward. That's the way it is. Shield out.