Do the people on this forum really not have the experience of a high end system revealing flaws with a recording that weren't noticeable on a lesser system? I do feel that sometimes those flaws end up being less forgivable than the issues with the lesser system that covered them up. As a metaphor, consider looking at a pixelated image, but you aren't wearing your glasses, so everything is blury. When you put your glasses on and fix the blur issue, the pixelation issue becomes obvious. You might prefer the blur to the pixelaton.
I might hear a song on the radio in my car, and think it sounds great, and promising that it will sound even better at home. In my car, the low frequencies are boosted to cover road noise (pretty much all cars do this because of the spectrum of road noise). When I play the song at home, I might find out that it's actually very thin sounding.
Other times a song sounds fine at low level, and when you try to turn up the volume, you realize the balance doesn't hold up. On a lesser system, you blame the system, because you know it distorts when played loud. Take that song to a good system and try to turn it up, and now you realize the song is to blame. Even if the good system might have made it sound better at the same volume level, you're still left disappointed that the nicer system couldn't make that song sound better than it does at higher volumes.
Similarly, when a song fails to image well or create a nice soundstage on a lesser system, you blame the system. Sometimes your imagination leads you to expect it will sound better on a nicer system... but it doesn't always.