True, but the trend I think is more likely is that the FF are cursed when it comes to feature films. No one seems able to get a handle on how to fashion a decent movie around these characters.This is Hollywood. They see trends in everything.
I'm generally not a fan of superhero teams, but I really liked the first Avengers. I haven't seen the second one yet although my impression from reviews and general comments is that it's not as good as the first film.
I also really liked Guardians Of The Galaxy. I find myself looking forward to BvS because I sufficiently enjoyed MoS. I do think it silly that the actual MoS2 will follow BvS when I see BvS as the sequel to MoS given they're apparently going to address issues from MoS.