No it's not. Joe Rogan's content is objectively stupid. He somehow manages to amass an audience while entertaining some of the dumbest thoughts I've ever heard. He gives experts and charlatans the same platform, and treats them as though they're equally experienced or qualified.
Refusing to have Jordan Peterson, a psychologist, on your show to say pseudo-intellectual nonsense like "climate doesn't exist" is not censorship, it's just basic editorial sense. Rogan somehow fools people into thinking this lack of sense is a virtue.