It works beautifully on so many different types of ego. If you have power fantasies, you can either choose to live vicariously through the celebrity or immediately find your equally toxic anti-fan group. Everyone else at least just finds it entertaining to watch all kinds of people make asses of themselves.
Meanwhile, nobody ever really questions the basis for all of this. The public side of a celebrity is a brand that is indeed as carefully planned out as any other ad campaign.
The only difference today is that things must be done like this to get ahead of naysayers since everyone has a voice online. All the bad faith is now a feature, not a bug. As soon as they figure out all the ways something could be argued against, they have to pre-emptively find the dumbest ways to say it to cast doubt on the legitimacy of dissent.
It's like a Penn and Teller act. They don't even have to hide any of this for the illusion to still work.