I think Ebert is scared. In a way, Movies and Video Games are competing in the entertaiment industry and he see his Favorite Art been, in a way, destroyed by a new thing he doesn't understand. If you don't care about figure out how the new medium works, and you are scared by the destiny of your favorite thing, you attack back. And that is exactly what he's doing. If he's desmostrating contradictions to trying to make up a point, he's enraged or scared, because he's not thinking clearly.

In other words, I think we're feeding a troll.