The key issue is actually this: there are probably fewer than a thousand properly installed and set-up domestic multichannel music systems
in the entire world. You and e.g.
@Sal1950 and maybe some others here have one, but there is
no chance at all of the mass market following your lead, because of boxes and wires and ugliness and intrusion.
Therefore there is no money in multichannel right now. Because of mass market domestic resistance, the notion died in its crib. Loudspeaker-based multichannel will
never happen. Those of us whose income depends on such things
know this. Nothing to do with audiophiles' attitudes.
Instead, we're betting on infinite-channel immersive sound delivered by headphones. That's where the research is, and where the money will be. A current-day Toole would be working hard on it. Sean Olive has been, for years. Me too, and my peers. We're almost ready. Believe me, recording engineers are always thinking of our wallets, but we base our projections on reality, not anti-audiophile rants.