They're not a source of information, they aren't being touted as such, it's entertainment. I don't remember watching UFO documentaries on the Discovery channel and them being touted as factual, it's just entertainment, you take it with a pinch of salt.
Slap a disclaimer on all his shows then.
It's presented in a format that can be used as an information source. We've all got that mate down the pub that'll go, "I know it's true because <insert person here> said so, and I trust them more than <insert well respected news outlet or government source etc> because they hate us all, man" while stirring their white russian.
I do agree that it's entertainment. Most treat it as such. The people moaning take it too seriously, but tbh at the same time I can see where they come from when it comes to the level of harm the ******** chatted about can cause to some members of society when used as a primary information source.