An often heard complaint. And one I find odious.
It kinda begs the question, "if you've never heard 'live' music well-presented, how could you possibly judge the merits of reproduction?"
Oh, you can enjoy it. Grain free, distortion free dynamics with lots of ambient cues is wonderful Hi-Fi. But it's no basis for judging the 'quality' of the sound compared to the real thing. Lot's of folks have a plastic or other synthetic Pieta in their home but only the actual sculpture evokes the feelings that Michaelangelo intended.