Earlier quoted context omitted.
No, it's like saying that when you buy your favorite brand of ice cream at the store the grocery store keeps most of the profit because without the store the ice cream manufacturer wouldn't have a place to sell to the masses. If said artist is in such high demand, then he or she can go make their own streaming platform, charge $10/month, and keep 100%. Obviously that isn't the case, so they must get some utility out…
No... you're missing the point entirely The store is Spotify. The brands are artists. If I buy brand A, the store gets a cut, and brand A gets a cut. Brand B gets nothing. With Spotify, if I listen to Repartee, Justin Bieber is still getting some of my money.
Again, Repartee is free to pull their songs and sell them directly to you if they think that will bring them more fans and more money. It's kind of funny for two consenting parties who both use a platform to complain that the platform is treating them unfairly.