I think people hate on Kendall because of her family (I don´t like her as a model but I don´t like a lot of famous models either).
It seems that people forget that:
1) She´s not the first "dull, dead in the eyes, gives one expression model" out there (I put her in the same category with Toni Garrn, Edie Campbell, Binx Walton).
2) She´s not the first model to capitalize on her family, the difference is that we all know who her family is. In other cases, they´re just rich families with connections.