Put yourself in his shoes. You have a hobby and it brings in a good and stable income. You don't work in a studio and there is no investor or producer who would force you to release a game as soon as possible. You enjoy your life and you are in no hurry. Yes, there are a huge number of fans who don't like it, but you've already banned all the disgruntled ones, and there are so many left that you can quietly let a few thousand subscribers go.
For him, game development is like a computer game, he enjoys the process itself. I assume also that he devotes not so much time, but 5-6 hours a day.
But really there is little to enjoy here, because he appears to have finally lost the slightest control and when he finishes the game many of us will be retired, lol.
I don't believe he will be able to keep the game interesting for the next five or seven years.