I think the whole feminist argument holds some weight when it pertains to league of legends. In a way.
Kinda,
Hear me out. And it's only prevalent in Riot's older champions before they smartened up.
Like, Janna per say, what about Janna's lore and character makes you think, oh. "She sounds like the kind of gal that gives implied blowjobs and wears lacking clothing!"
Clothing really isn't a big deal. Until it directly clashes with the character's lore. Like Pre-VU Sejuani. Battle hardened warrior that rides a mighty boar wearing that kind of "armor"? Naah mang. I can definitely see where you're coming from but it all seems like a blind distaste and you're arguing against nobody really. Evelynn, though. Skimpy clothing seems to fit the bill just fine. But it becomes an issue when majority of female champs are depicted that way. One instance where I feel either a retcon to lore, or a VU is needed most is Caitlyn.
What part of Piltover law enforcer makes you think Big hat, short skirt, or whatever the hell she is wearing. Look at all the other Piltover champs, okay. Now back to her. What? It's just an offset, y'know. I'll say it again.
It's okay if the lore makes sense in what the character chooses to wear and act.

It's peachy if the lore doesn't directly act against in what the character chooses to wear and act.

But it is not OK if within the lore it make no sense at all why the character chooses to act the way they do in game. In what they wear and what they say.
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And I think that's what the feminists are trying to say.