Who Uses Rear Surround Speakers For Music Playback?

I decided to ask one of our all time great audiophiles. Decided to film it so as to not risk a misquote. https://youtu.be/VKcAYMb5uk4?t=6

My take on it is that it’s all good...whatever the listener prefers.  There’s this “as the artist intended” school of thought.  I prefer the “as the listener intends” school.  Sometimes this listener likes “as the artist intended” so I have a fairly minimalist (although I did break down and buy a Loki...lol), 2 ch rig sharing my Audio cabinet aside a 5.2 setup for when I want a little more “stadium” than the artist intended....

doesn't work for me......I have a 5.1 system in another room....whenever I want to hear music I go to my 2 channel system.

Whatever sounds good is where it’s at. Those who thumb their noses at it can stick the whole fist up there.  
ML Motion 2s sound pretty sweet in back.  Best with seperate amps.