The guy is an artist. Artists are the ones in control of their art. You're given an opportunity to guide his art, and instead of embracing it, we sit here and criticize his process? Maybe the music is important to him? The guy puts out higher quality product than literally anyone else. These aren't just loops that go on for 5 minutes. There's buildup, dialogue, structured backgrounds to the characters, hand-picked voice actors, new techniques added to each video. He's world building, and music is obviously a part of that for him. If you're genuinely complaining about decisions he makes just because you don't agree with them, then go make your own videos.
It seems obvious that some of you don't understand where motivation comes from, or the thought processes that lead to work of this quality. He's exploring avenues to increase the quality of his work. There's a fine line between being constructive in our criticisms, and being ignorant to the whole process. He's not screwing anyone over or milking his subs. The guy has put out more consistent, quality content than anyone else in the last year. Let him have fun in his work, so that he continues to do it. If y'all want to suck the fun out of it by being ungrateful and entitled, go for it, but don't complain when he randomly disappears because he got sick of all the bullshit.