I don’t think that position holds for everyone. In fact I’m sure it doesn’t (even if I’m the lone exception). Which tends to be the biggest problem with objective assaults on a subjective experience; i.e. faulty assumptions about what the desired end result should be.
I listen to music exclusively for pleasure.
My favorite way to do that is to spin vinyl on my speaker rig.
I would never argue that vinyl is as technically accurate as properly handled digital audio. And similarly I wouldn’t be worrying about the difference between 0.001% and 0.0001% distortion in the DAC or amp when the speakers likely have 2-3 orders of magnitude more distortion.
But no amount of measurement data changes the fact that my vastly-superior-measuring headphone rig, or digital source, is not as enjoyable for me to listen to as that vinyl-sourced speaker setup.
I want to enjoy the listening experience. I want to enjoy the music. All other considerations in the construct of the system that does that are, at best, secondary.
If I like what I hear, then I care more about aesthetics than I do about numbers.
One day that might mean cranking the bass levels way up to suit my mood. Another day it might mean listening via a tube amp vs. a solid-state one. Again, the tube amp doesn’t measure nearly as well as the solid-state one, but I’d still rather listen via that 99% of the time.
That’s 100% at odds with the idea that accuracy is at the same level of importance or relevance as enjoyment or preference for me.
And the unavoidable conclusion there, for me, is that it is clear that for whatever reason I find systems that have some level of coloration (which is just a fancy word for distortion) more enjoyable to listen to than those that do a closer-to-100- perfect job of reproducing the original performance.
I say that in ownership of systems that have state of the art measurements and those that use vinyl sources and tube amps. I have both options available right here, and I invariably chose the less-well-measuring systems when I want to relax and enjoy myself.
Which is fine, because I’m listening to music, not pursuing the assembly of an idealistic “highest-fidelity” system. They are not necessarily the same thing.
That does not mean I am not interested in measurements, just that they’re not how I choose what I like to listen to (generally done blind, with a shortlist of components).
I expect that if a device is sold on the basis of FIDELITY, or OBJECTIVE performance, then it needs to meet its manufacturer’s claimed performance metrics. There are fraud laws that are meant to help ensure such claims are met and to protect the consumer.