Not defending Spotify's dealings, but their operating margin isn't all that big (now that it's not negative). Around 8% last I looked. McDonalds' operating margin is something like 5x that.
Operating margins of the big record labels back in the 1950s and 1960s like Columbia and RCA were also maybe 3x-5x higher than what Spotify's margin is now, I'm sure a few hit 40%, average maybe 25%.
Plus at Spotify have also got USD 2 billion in debt to chip away at over the next few decades.
I think what Fountain is doing is great, but not sure if it's an antidote to Spotify profiteering; feels like an antidote to something wider, and something that affects Spotify too.