Well put, but im not sure what the incentive is for content recommendation algorithms to scale down :/
Primarily though, I'm also referring to musicians needing to scale down to building local communities and their own web sites again (like the old days with message boards etc, but updated to add similar/good features and functionality of modern social media sites). So that visibility is not based on fruitless payola.
If musicians pull back in protest to these limitations, there would likely be a swift response from platforms in order to retain and reward creators properly, the challenge would be holding platforms to proper account for all the obscene profit they make off of currently unpaid work of independent creators.