My original post was that I was listening, or "using my ears to judge" as you so eloquently put it, to MQA files compared to my own FLAC collection and noticed a marked difference in that the FLAC was much richer and had better extension. The measurements, as I said, came after this realization, but only backed up what I was hearing.
Some of us aren’t afraid to look at empirical data (look it up) as it applies to this hobby. While measurements are only a single facet of the big picture, they can definitely inform decisions.