Listening fatigue is a funny thing, it seems to only happen to people over 30.
I think the dirty little secret is as we age we don't listen to music for really extended periods of time as often as we did when we where younger. Not being able to except we just get tired of music faster we blame it on our perfectly good gear.

True there are some systems with terrable peeks in the upper ranges but few would bother a younger listener.
So much of this has been made to sell very very expensive fixes to a problem that may just be in our minds.