As far as theories go, the evidence for that one is pretty compelling. I'd put money on it.
I think it's funny that despite Doomcock being so obviously full of shit, he has more subs and viewers than Ethan. Indicating that people much rather watch a costumed weirdo predict the imminent firing of Kathleen Kennedy for the 9,563rd time, than watch another (occasionally costumed) weirdo gripe about Eric July for the 7,834th time.
Say what you want about FNT, but the Star Wars shit seems to attract a bigger audience than Ethan trying to deal with his bruised ego.