I think of two reasons: 1. He has an exclusive deal with Spotify preventing it. 2. To reach masses (masses != HN audience) you need to be on Spotify/Apple Mus

I think of two reasons: 1. He has an exclusive deal with Spotify preventing it. 2. To reach masses (masses != HN audience) you need to be on Spotify/Apple Music/YouTube. Not technically, but practically, it's a must.