It's funny, but nothing he does is controversial anymore. Sure, he says "mean things" like the Jon Benet line, but people don't react to it anymore. They've realized it's his shtick. The only remotely controversial thing he's done since his comeback is The Warning, because that was actually personal and had bad intentions.
Almost every other big rapper stirs up more controversy now. Wayne/Emmit Till, Jay-Z/Cuba, Kanye/throwing hissy fits and walking into signs, Macklemore/making the gay love song, it's crazy. And Em is completely safe too, I couldn't picture him ever getting mad at paparazzi or getting in a fight now. He's basically just a stay at home dad who writes rap records. He isn't edgy at all.