Zack Snyder told once in an interview that a "story without sex or violence isn't for him."
So yes, BvS had the most despicable versions of characters we love. Batman isn't an upbeat fella, but he ain't that deppresive. And Supes isn't an dumb a-hole like shown either. And Lex Joker...
I certainly enjoyed Civil War more than BvS, but I feel like Marvel-Disney are getting a bit too comfortable in their recent endeavours, to the point where it barely feels like there is any actual stakes. I'd go into more detail were it not for fear of spoiling. Spiderman was the best part though
You have no idea how much of a neurotic paranoid retard batman was in comics on some occasions. Starting with anti JLA kits that get stolen from the batcave every second Tuesday and ending with No Man's Land arc when he forbade the entire community of superheroes to help Gotham after the earthquake.