By design, the original question makes no presumptions about the absolute quality of a system or the philosophy underpinning it.
Rather it concerns the effect of making an incremental improvement in sound quality to any system. It challenges the generally held assumption that this objective improvement must automatically translate into a better subjective listening experience.
Is this assumption valid? What can be said in support of it? How can success be assessed? Does success depend on the qualitative characteristics of the improvement? ie. noise and distortion reduction, imaging, dynamics, solving the problem of bass in real rooms, removing digital artefacts or overcoming listening position limitations.

