You keep saying this as though it is fact, it isn't. Given the level of burnout in indie game making, especially h-game making, it is reasonable to assume that without his Patreon, Akabur would have stopped producing games altogether. You argue that he would produce faster, I'd say that given his level of anger after the Witch Trainer debacle, he could very well have just left the scene.
How do you know that his level of funding is not the reason he is still producing at all? Akabur has always taken his time. Yes, he released unfinished games faster in the past, but he has stated he is trying to completely finish this one. We don't really know what that means until he does.
Wow, feels weird defending him... but, he is clear in what his Patreon is about. He has also asked people to stop pledging and pledge to others like DAHR. He most recent posts indicate that he has done a good amount of work towards PT:Gold. I'd wait to reserve judgment. Simply DO NOT PLEDGE if your not comfortable. Problem solved.