I think some of it probably has to do with having more talent around him so that teams can't just focus on shutting him down like they did with Ohio.
+1 I think that's probably most of the answer as to why he'd doing so well.
I've very happy to see our own Nature Boy doing so well in the summer NBA games. That quote from Fisher seems to indicate he's going to make a roster somewhere. I'd love to see him in Cleveland.