Let's put some order in this jumble of hatred against your fellows, fanboy.
1) If that was so stupid as you say, it would have never existed. If it exists, it's through a thing called "fantasy", that takes place in comic books and cinema as well;
2) It's like the X-Men and Batbot indeed, because it keeps going into this unimaginative and quite lazy way the industry found of getting loads of superhero generics out in the market:
"make them all black and say it's for the sake of adapting the source material, that we'll keep the spirit, or something of that sort. Realism, whatever. Just wrap the hot chick in black and they'll drool and forget. They're goddamm teens.".
3) If the last part of your rant is true, then why worrying about superhero flicks, anyway? I don't think it's true, cause we have a bunch of examples on the contrary: Iron Man (a man in a metal gear, yellow and red, that can fly and what not?); Hellboy (a devilish giant red ape with severed horns?); Spider-man (a boy in a tight red and blue kind-of leotard, with a mask and shooting webs from his wrists?), etc.
So, when you say "cheesy", think again. People dig it with no problem. And Scarlett would be much better in her classic outfit than in this generic übercrap.