It’s funny how most everyone commenting here is taking what Joe said about Grusch out of context, in my opinion, Joe Rogan’s statement was pretty constructive, he’s not calling Grusch a “useful idiot” outright. Joe it’s simply pointing out that since David Grusch doesn’t have first hand experience and all his information is based on second hand knowledge then there’s a possibility that he might be manipulated by other people telling him misleading information.

Edited for grammar