I'm one of the few that actually enjoyed FF--a lot--for the things I did like about it, where it worked (first two thirds), and concur with Schnepp and Campea re: the final act that the film was completely taken out of Tranks' hands and inexplicably and horrifically butchered in post.
There was a kind of group-think, Lord of the Flies 'let's all pile-on' geek culture bashing for that film that was like a school of piranhas that had gotten the scent of a bleeding, injured animal in the water. But note that the catastrophic failure of that film did zip to slow down the momentum of the superhero genre craze. It's stronger than ever. People just shrugged and moved on.
For the GA I don't think that the recent BvS trailer did any harm at all. For nerds like us that live and breathe CBMs there was perhaps either mild disappointment or mixed feelings. It didn't quite measure up to the 10/10 epic first full length trailer from SDCC--that thing was a masterpiece, and one of the best trailers ever released. Which made it hard to top. It was going to be tough from the get-go for the next trailer to elicit the same euphoria.
But every time I watch the most recent trailer I am more engaged by it, and it makes me more curious about and eager to see the film.
Then again, I'm a hardcore fan. The GA that saw the trailer at the theater for TFA... i.e., by which I mean not the CBM nerd Synder haters that were most likely the outliers that went out of their way to be vocal by groaning or commenting negatively... but anyway, not them but the GA... if anything they probably reacted, 'oh wow, cool! Wonder Woman is in this thing! and she looks badass!' Plus the GA expects humor due to Marvel films, and they got a flavoring of that.
I don't think this trailer did any harm at all.
But for the buzz machine to be firing with full force they really should release one more trailer that comes closer to rivaling the SDCC one. Because then the love will be flowing again from CBM nerd blogs, vlogs, podcasts, and sites like this.
Look, this is Zack Snyder we're talking about. He's a lighting rod and that isn't going to stop, I don't think. Because he is a sophisticated artist, and a bold and visionary director. There will be bitter haters of this film no matter how good it is for those who love Snyder's work. I take that as a given. But I also still have great faith that Snyder will find the sweet spot with artistic creativity and mass market appeal. I actually don't even mind if the film is as artistically creative as 300, Watchmen, and MoS--if it is, personally I'll be ecstatic. But I hope that Zack can also bridge his ability to make extraordinary films like those three to a mega-blockbuster type of format. Because there is so much riding on the success of this film in the latter dimension, far above and beyond it just being "his" film as a director.