Ferrari does things primarily to sell cars, because it’s a company, a for-profit organisation.
Toyota sells more cars than Ferrari. Do you think that if Ferrari should starts building more cars like Toyota it will be good for them long-term?
Are you familiar with the doorman fallacy?
According to data they seem to be doing fine
So is McDonald's.
The argument is not that things stopped being popular. It's that they are becoming uniformly similar in a bland way.
Why should anyone care if the answer is seemingly an uninspired “stop liking things I don’t like”?
If you actually watch the video, perhaps you can understand why. But it seems you are more interested in sticking to your preconceived notions than listening to someone with opinions of their own.