Well, yeah. That and with regular cosplay, at least for someone like me, half the point is trying to recreate the costume to the point where it no longer looks like a costume, so to speak, but rather a real outfit someone could really wear. Kigurumi instead focuses on making it still look like it's animated. So in the latter case, it's like trying to be a toon stepped into the real world, while in the former it's trying to figure out what it'd actually look like if it were real and not a toon.