This is ultimately the problem with hĺs podcast. It too often provides a great platform for people to spout nonsense to a massive audience who don't understand this (as well as also allowing great guests to do the opposite, of course).He's not an investigative reporter, he just talks with people he wants to talk with.
There are plenty of dipshits among the online MMA fanbase, but they get exposed to a lot of Rogan hatred, and because of it are far less likely to think Rogan is infallible on his podcast. It's the many people you meet who watch his show religiously but have never watched an MMA fight in their lives that you have to watch out for.