I don't think that there is any way Sessler is confused, he's been in this business too long. He understands the issue completely, but seems to be deliberately obfuscating and using misdirection (it's about the games!) when discussing it. This is frustrating to many people, especially when there seems to be a pattern of this happening a lot lately.
But it may be about interpretation. People in this thread are talking about how it is about the same game performing differently on XB1 and PS4 while he's talking about the general perspective (from what I get), not even talking about the specific games. His message seems to be more about how he's more interested in the game design aspects and wants to discuss that.
Again, I can see why the technical aspects need to be discussed, but it may be just about him not being interested in talking about that. And looking his reviews, he doesn't detail much about the technical stuff either.