You are not sure why he is quitting. After all, it was just a little Title IX boogie.
Well, there would be the swastikas and the bags of feces. These aren't traditional welcoming gifts anywhere I know of. Let's see, pulling fire alarms, pulling speaker wires, being spit on, more investigations ...
It's all right there, in the article. In case you are still not sure why he's quitting.