Spotify is not for putting out art, it's for generating buzz about your art so you can get paid for it later.
If your goal is the best art you can produce, then perhaps Spotify and that roller coaster isn't what you should care about.
If you want to good art while also also getting a lot of buzz so you can make money or be popular, then you need to deal with market forces, just like everyone always has.
Different artists will value to varying degrees generating good art, exposing many people to that art, and getting paid well. All those goals are related, but I doubt any one of them can be maximized without concessions from others.
> Imagine telling Hemingway he has to release a new blog post every week instead of a book every couple of years.
Authors release at their own schedule if they don't rely on the money from the books, they have other income, or they've already made enough to be secure. Hemingway is not really different. Neither is any other already famous artist.