Decentralized alternatives such as PeerTube pay musicians less in ad revenue (about $0.00) than Youtube does.
In other words, PeerTube doesn't provide the same benefits to musicians (audience size, recommendations discovery, ad payouts) that Youtube has.
The trigger for the disagreement between Koda musicians and Google is about money payments and not about storage & bandwidth costs. PeerTube in its current incarnation is not relevant for Koda.
Another relatively decentralized alternative, LBRY, pays at least some YouTubers significantly more per view than YT: https://www.youtube.com/watch?v=EWoZhKGQtzI (this one seems to get payed about ten times as much per view).
In other words, PeerTube doesn't provide the same benefits to musicians (audience size, recommendations discovery, ad payouts) that Youtube has.
The trigger for the disagreement between Koda musicians and Google is about money payments and not about storage & bandwidth costs. PeerTube in its current incarnation is not relevant for Koda.