Hm... I think the issue with Lisa's crazy horse gig is the fact that people have a very puritan perspective of what Kpop is supposed to be like. I've seen so many people say they prefer Kpop because it's not overly sexual compared to Western pop... creating an imbalance in which when female idols (unlike male idols) display any sort of sexual innuendos they will be more scrutinized and criticized.
The hate Lisa has been getting is coming from all sides IMO.