Rogan's curiousity is probably honest. It is certainly broad as I perceive him to try and get a variety of guest opinions.
My problem with him is that he is often out of his depth. I no longer have the patience to sit through two hours hoping he'll ask the tough question.
“Life, liberty, and property do not exist because men have made laws. On the contrary, it was the fact that life, liberty, and property existed beforehand that caused men to make laws in the first place.” (The Law, p.6) Frederic Bastiat