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If someone is dressed like a call girl, she’s going to get called-out for it by those around her.
I have written the characters, and of course I have created their motivations. That's all a part of the job we call "fiction writing." I'm not personally condoning nor condemning anyone for what they wear- A fictional character in a fictional comic book is condemning another fictional character for dressing totally inappropriately. That fictional character dressed like a hooker also eats the charred flesh from a dead body. Does that mean I personally condone cannibalism? No.
PANDORA: She's dead! I just killed an innocent woman!
WIDOW: "Innocent?" She was dressed like a freakin' hooker. And I would know. I've been there.
You've gone a long way to make your point by asking questions which you yourself have answered, specifically, "you might be tempted to say that the characters... are speaking from their own motivations." Well, yeah. They are.
And by the way, as I stated in an earlier post, I didn't design the costumes (except for Widow) and I also didn't create the characters, except for Widow, the one who utters the line in question.