This makes sense for people who listen to recordings of live performance, perhaps. We certainly see multi-channel devotees like Messrs Rubinson and Toole himself declare congruent musical systems and tastes. But for me, not so much.
I know your 5% is rhetorical, but certainly > 95% of the music I listen to originates in a studio, assembled from close-miked vocals and instruments, synthetic sounds, samples and effects, all layered using the normal tools of production. Sometimes that is mixed to multi-channel (which we may see more of with Apple's efforts) but generally the "original event" is a composite of events assembled into a stereo mix. Which we can reproduce effectively using a stereo system, give or take the usual vicissitudes of equipment and room.
While I do not disagree with your comments, indeed, my 5% is aligned in a broader sense to go with my discussion about stereo in general. That would be, that it is not capable (two speakers, plain old stereo) of providing the realism of a live event, and so stereo, while weird and interesting (and it is all we have not counting minimal product for binaural and multi-channel) is just trying to give an illusion of the concert being at your house. What I am saying is there are limitations to what one should expect out of the medium.
Yes, it fun but in the context of this thread, having so many systems is this guy trying to get one that "ticks all the boxes", none of them will ever do it just because the medium is not capable of doing it. Let alone the huge impact of our own feelings and ear brain interface variables, which dwarf any of the shortcomings of the system.
Yep, I do enjoy the music, I do not expect it to cause me to suspend belief, and as a medium, recorded as best as the mix or master engineer thinks they can do to make stereo sound "good" it is enjoyable as long as one stays in reality about the limitations.