Ah, the "slots" argument. Even if Chloe was purged from existence there no guarantee your favorite character(s) would get in. Dislike her because you don't like her design, fighting style, etc. Hating on her because "she took a slot" is a waste of your time and energy.
I'm not. But if we're going to be getting new characters and losing old characters, then I'd rather that those new characters represent something that isn't already there. We've already got four very anime-esque perpetual teenager fighters in Tekken 7. In fact, not counting Chloe, there are only two other females confirmed for the game besides those four.