No, don't get me wrong
It gives the outfit a kick and moves it from a mere bathing suit (sans sash) to a costume. It's very classic and better than her other costume efforts (and her bum cheeks are covered!), but if she's flying between buildings, suppose it caught on a nail or... something?
I must admit, this is why I like Brian Hitch's costumes (like Ultimate Wasp), because he seems to think about stuff like that.