TBH, a lot of what I currently listen to on Spotify is relatively unknown Synthwave bands/producers who generally self-publish on Bandcamp, maybe have Patreon etc.
I do not think Spotify should be trying to actually produce their own content in the way Netflix does, but I certainly do think there is scope to disrupt the traditional "music label" by helping to promote these independent artists, both online and in terms of tours, merchandise, etc.
I already find a lot of this via Discover Weekly, so it doesn't seem like a huge jump. The key is recognising that the era of pop music is over, just as the days when 50% of the nation would tune in to the same TV programme are over (with the possible exception of certain sporting events). Music is heading away from supergroups on labels like Sony BMG and promoted on MTV, towards a larger number of micro-brands serving individual tastes more closely.
Edit: I should add that it's also important to recognise the social aspect of music: what people listen to in clubs etc. This is where being on a label (currently) matters over just being on Bandcamp.