I am a big Neil fan as well, but the SQ had nothing to do with his request to have his music removed from Spotify. He wanted Joe Rogan's misinformation about vaccinations removed, and apparently it has been done, but Neil is gone from there anyway and like he say "once you're gone, you can't come back, when you're out of the blue and into the black".
From my understanding, Pono failed because the SQ was too good (files were too large) so the big boys never agreed to carry the files,