Things like Angela’s design bother me, not because there’s any changes, but because I find the overused “sexy badass women who fights in her panties” thing to be really alienating as a female fan. And it’s certainly only a one way kind of thing. I mean, I don’t ever see Hawkeye trying to seriously fight bad guys in a “protective” armored thong. I know there’s been criticism like this for a long time now and every time I think things get better, there’s another jigglefest fight scene. How seriously does Marvel consider its portrayal of women?
I think your point is valid, though you could find examples of male heroes who similarly operate in very little clothing–folks like the Hulk or Hercules, for example.
I think this is a situation that we consider thoughtfully in each case, but there isn’t a one-size-fits-all answer, any more than there is the costumes of any other characters. What works for Captain America doesn’t necessarily work for Thor, and so on.
But I think if you look at the Marvel heroines across the boards, you’ll find that most of them go about their business in relatively practical attire–as practical as a cape can be in any circumstances. There are certainly exceptions to that rule, but those tend to be character-based more than anything else. And you can certainly point towards the depictions of the female form within those costumes, which is a separate discussion.