It's not all about hating the Kardashians and everything associated with them, Kendall fans keep spitting things out like this when the fact of the matter is she's just not that impressive here. I'm someone who has complimented her on the runway, and will give credit to her when it's deserved, but here she really looks naive, lacks intensity, and is out of place next to older and more seasoned women.
You don't see anyone knocking the Brant boy, whose nepotism also placed him here, because he in comparison to Kendall actually looks very high-fashion and sophisticated.