no, he didn't

but it is pretty obvious: episodes were becoming increasing bloated, the plot had tons of loose threads which were increasing with every new release etc... It is clear to me that the show had come to a point where it needed an actual lead storywriter and not only editors and animators

He took the chance to bail out when GW changed its policy towards creators, but the writings had been on the wall from at least ep. 24-25. His "I'm quitting TTS" video does not make any sense either: he says he is doing it due to GW's new policy, since he has a family now and he can't keep his eggs in one single basket which could be C&D'd/DMCA'd into oblivion on a whim (he also said he could not afford a lawyer, even though he's earning an obscene amount of money from Patreon each month)

but years later his videos are still all on yt and racking millions of views and no one dared to lift a finger against them. And other creators are still going strong (e.g. Flashgitz) with no sign of any reaction by GW. So I call BS here