That's unrelated. Rogan's interviewing process wouldn't be improved by having leftists on. The point is that "we have a guy who points out contradictions" is not enough to produce productive discourse.

The problem, as always, is that the plebs will listen to it and get the wrong idea.

Our venerable grandfather, of course, is smart enough to recoil from wrongthink; it's the human masses out there he's aiming to keep fed with the Correct Opinions.