A lot of these superhero movies are written so badly, makes you wonder whether the creators ever graduated high school. No clue of even the most basic rules of creating drama/tension -- for example, almost all of these Marvel/DC/whatever superheroes are for all intents and purposes immune to bullets (like Deadpool, regenerating and cracking jokes with holes in him), yet there's scene after scene after scene of the superhero(es) taking out normal humans with guns. Once, to show how badass the dude(s) are? OK. But all the fucking time?
Y-a-w-n. What's the point? Not only are those scenes boring (hero has no way of getting hurt), but they make no sense in an internal logic kind of way. The grunts are apparently happy to keep running and dying to superhumans despite seeing they can't harm them. And the bosses of said grunts keep sending them. The worst/best example of this was in some Avengers movie, the newest I think, where they assault a base in the start...
In short, they come across as juvenile masturbatory material, written by someone going through a superhero phase that seven year olds usually go through.