i understand what you're saying and partially agree with you, and yes there are devs out there who implement some kind of content just to please a portion of their fanbase. But again, if you're a dev and the game you're working on is a major source of income to you through Patreon, Sub etc, wouldn't you want to listen to what the fans want and put that into work ?
We've seen plenty of cases where games started shifting and sometimes turning into complete fan service just to please the fans, but if that's how a dev can make a living then so be it, i don't think there's anything wrong with that.
One of my favorite devs of all time is Amaziri who makes MetF, for years now a large group of fans have been continually asking (almost harassing him) to implement X or Y type of content and make W or Z type of change into his game, and he never did, even when some of the so called fans started leaving and stopped supporting him, and i respect him for that a lot because that's HIS game, and he wants to make it into a certain image, how HE sees it, not how some of the fans see it.
But even if he did change his game a bit to please some fans, i think i could understand why he would do that.