Basically:
If you have a female character wearing default (nothing of costumes or customization) scantily clad attire and even being subject to clothing damage, how is that alone considered sexist if their personality or the narrative has nothing correspondingly sexist in tone? I'm not insinuating it isn't, I'm just wondering how or what makes it so. Like no one in-universe is telling them to wear that, comments on it, or tries to lower that character verbally. Just the outfit alone.
By comparison, why does no one really cry sexist when it's a male character wearing nothing? Going shirtless is one of the most popular depictions of male warriors and there's not much say over it. Most of the men in Mortal Kombat like to go shirtless with huge muscular bodies.