Your view is quite myopic.
The idea here is not that ones audio system sound like a symphony. It is that ones audio system sounds like real unamplified voice and instruments that you would hear if live unamplified performers were performing in front of you.
This is the only objective way to be sure one’s audio system is faithfully reproducing what was recorded. To have no standard by which to ascertain if one’s audio system is faithful leaves you only with measurements. And if you think that’s enough then that leaves you myopic.