I really don't understand the hate around this one.
1. Spotify made a playlist that's "Chill Jazz To Study To" that's really popular.
2. They realize that listeners don't actually care about the specific artists in the playlist since it's background noise.
3. There are companies who specialize in making "b-roll" music for background noise and have a huge library of it just sitting around.
4. Spotify realizes they can license them on the cheap.
5. Profit?
Seems like a win for everyone involved including the listener who gets fresh tracks in their study playlists basically forever.