I think that might be one reason why he seems to be losing enthusiasm for it. He could be doing fine by just making very basic YT videos- they would not take a lot of time or effort and would generate decent (and growing) revenue (without the current overhead). But once you've upped the quality and promised more varied content, it can seem like a real step backwards to return to that basic approach. He doesn't want to be just another exJW channel, he was reaching well beyond that and climbing out of that small niche. Going back is like starting over and the loss of prestige must be more painful than the loss of excess money.
That confession video haunts him. It will always haunt him.