First of all, you've shared an article that highlights those outfits as being 'so revealing they were almost banned' - so the most extreme examples possible from an entire genre of music, which is a pretty broad one and - in this country anyway - much better known for boy bands.
Secondly, that article just shows short GIFs that snapshot a couple of seconds from each dance routine, so yeah, of course some of those movements are suggestive, but in the context of a full routine, it won't be anywhere near as bothersome - much like a film that has one swear word in it can still be rated a PG.
Thirdly, this is a not a new phenomenon and not limited to K-pop. I'm 49 and grew up with Madonna performing in underwear, singing 'Like A Virgin', and Michael Jackson grabbing his crotch on stage repeatedly. My 20s was Britney in school uniform and PVC catsuits and Christina Aguilera wearing chaps and bikini briefs. My go-to outfit for going to gigs when I was sixth-form age was denim hot pants, and a black Wonderbra under a see-through chiffon top or a 'dress' that was literally a satin slip nightie, and nobody thought that was in the slightest bit unusual.
It's not that I don't see your concerns - I do. But ultimately, your daughter is probably a lot smarter than you think in terms of the impression this sort of thing will actually make on her, and you can't shelter her from pop music. It is what it is.