I think they just plain ran out of material to work with. They were burning through material like crazy with top x lists. Plus, and I kind of hate to say it. But some of the very earliest material they had that touched on sjw stuff was surprisingly good. Like actually managing to cut through the sjw bullshit to get to the actual honest to god old school social justice that they're just a sad perversion of. Between both of those things and Wong going a bit nuts it was the perfect trojan horse to just go full shit pretty quickly.