Great description. I will say that (completely ignoring the digital/vinyl debate)...the same description in my experience applies to digital and vibration isolation generally. In the case of digital, EMI/RFI also falls into this camp.I can make an educated guess
There is something very profound happening when lowering vibration induced distortion. Typical audiophile jargon would be increased dynamics, both micro and macro, increased detail, better rendering of texture, more solid and more 3 dimenional imaging, better retrieval of soundstage / ambient cues etc.
However that doesn’t capture something which is hard to put into words. The best I can come up with is a very profound removal of stress and unaturalness allowing your system and room not just to playback a recording but to morph into an actual event happening with you smack down in the middle of it. It’s no longer just listening to music, it’s experiencing music.
If we only apply this sort of care to our vinyl playback systems, digital will never catch up.
My favorite result to illustrate the very, very subtle but incredibly impressive impact of this is the soundstage. I am NOT a soundstaging freak AT ALL. HOWEVER, what I have witnessed is that the minute there is some minute distortion, it seems that it becomes very difficult for the system to keep the soundstage at that outer limit and it starts to 'crumble'...the ability to keep the soundstage to its outer limit without having one particular crescendo note 'collapse' back into the center stage...is exceedingly difficult in my experience.
But as distortion reduces, the system is able to allow the whole soundstage to be 'completely stable'...which THEN enables each instrument to perform on its own, to 'breathe' in terms of reverb, decay without 'colliding' into another instrument whereby BOTH instruments each lose their decay into a messy bit of noise that can no longer be distinguished as 2 separate instruments.
And THIS (for me) has added a sense of ease, naturalness...where every instruments seems at ease to play in its own space and play its own lines of music in tandem with other instruments which are also breathing naturally on their own.