Having a debate isn't about truth or evidence, it's about debating skills. In the case of 3 on 1, it's not even that. Hardly requires a special knowledge or talent to be rude and keep interrupting and talking over the top of somebody...
Yeah, it was a little annoying though. Shermer has been on Rogan's show before and they got on very well. Rogan even spoke well of him in later podcasts as well. So it was surprising to see how he treated him in this episode.
Honestly I like Joe Rogan's podcast and watch a lot of episodes. Generally while Joe can sometimes be credulous or biased, he is a good host, relatively honest, actually interested in the truth, etc. But while I tried I couldn't even finish this episode because it was just getting to aggravating. I made it about an hour and three quarters through and decided it wasn't worth continuing.
I enjoy trying to understand how people who see things differently than me come to their viewpoint. Sometimes they even change my mind which is a cool thing to happen. But this was just bullying.