Mr T, I'm not sure we are in disagreement about anything. I can certainly agree with most you've said, much of which is nothing more than your expressing your personal preferences and order of priorities.
As with good literature, which I think is the best example, and much easier to appreciate, music can be experienced and appreciated on many levels, all of which can meet the needs of the listener at different times of life or when in differing moods.
No more than I would consider a thin book a 'simple' one would I consider a great and thick novel a 'complex' one. Examples abound! Note I did not say good or bad, just simple or complex. No judgment attached.
Its very easy for me to get immersed in solo piano - sometimes I can enjoy Beethoven more than Brahms, both of which can be assending experiences, and there are days when I find Schumann (especially his Fantasy in C) to be transcendental. Not many notes on the page, but not simple. Then there are days when I just enjoy simple music such as 'The Seasons' by Tchaikovsky, which is very attractive but not particularily challenging to the ear or the mind.
Now to my point, at last! When I'm listening to complex music I just don't want my audio system to distract me by its 'stereo' artifacts, usually the result of manufacturers efforts to enhance inmaging by emphasizing 'detail' over all else, or so it seems to me.
FWIW.