That guy was an idiot. That theory is based on a fake documentary that was made to SPOOF conspiracy theorists!
The conspiracy theorists cut bits out of the documentary that was lampooning them, posted them on youtube out of context, and people actually started believing it. It’s stupefying how gullible some people are.
Here’s info on the fake documentary:
https://en.wikipedia.org/wiki/Dark_Side_of_the_Moon_%28film%29
Just go to youtube and search “Kubrick Moon hoax” and you’ll see all the conspiracy videos put up by people who chopped up that fake documentary.
I hear ya.
It was a lot more entertaining than Richard Hoagland or Major Ed Dames though.