It was said many years ago about audio that if your measuremens don’t correlate with what you hear, you’re measureing the wrong things. As far as I understand ASR has never presented any studies that correlate their measurements with sound quality. Given their overall philosphy, that would probably be impossible as it would call for the addition of what they would no doubt call "subjectivity" to their arsenal.*
As for any proposed correlation between certain "industry standard" meaurements and sound quality, I can think of no better test of that proposition than what I will now propose as the "sns" test. In early 2021 and for some time thereafter you wrote of the audio quality of the 005. And IIUC you have it connected to an audio system of considerable sophistication. All of this was without benefit of the less than glowing ASR review. QED. There is no such correlation and/or the correlation is not particularly strong. In other words, if good sound is what we’re looking for, there is no particular reason to consult ASR.
Better, perhaps to consult sns. Or a well considered review of dbb. Or read of a good many other users who write of their systems, their experiences with other DACs and their musical tastes. Or look at the track record of the company which proposes a new DAC.
I interpret the advertising copy on the Musetec site that you quote to be almost the same as the communication to me at the time of the ASR 005 review. That is to say, the Musetec designer is a music lover and he designs by listening and that is that.
You can hope that the 006 will measure better than the 005, but if dbb is correct, what difference would that make? I, for one, hope that the designer continues to do exactly what he has been doing--turning out terrific components at prices well below that of competitive sounding units.
*Just for the record, in the day, HP denied that the reviews as then done in TAS were subjective.