It's true, a room can be over-damped. None of us would like to listen in an anechoic chamber.
But think on this. A performance properly recorded for stereo presentation will contain all the artifacts of that performance in that room. We should hear it as if we were in that room. But if we listen to it in our rooms we will hear reflection artifacts of our room on top of those of the performance venue. It seems to me that will confuse and complicate the performance we are trying to listen to, even distort it.
If we want truth in playback, may I make a plea for a bit more damping, rather than a bit less.