What is the reference, what is our reference in photo , video?Not the limitations of the equipment or the data, it is whether our senses believe in what we see.
The first LCD TVs were terrible to look at even though they were technically better than what they replaced, CDs were terrible to listen to even though from an engineer's point of view CDs were perfect sound forever.
Fortunately, we had a reference, the reality we experience every day.
Over time, both CD and LCD were aligned with this reference.
With CD it had a lot to do with the filter Nyquist forgot that people wanted to hear something similar to reality.
With TV it was backlight and screen that were the main problem.
Both are something you can't read off the data sheet, but it's easy to hear or see.
There is nothing wrong in precision , in good data , but as long as hifi is not like a calculator or a measuring instrument where there is always one and only one result , possibly with a tolerance added.
In my opinion, does this have to be taken into account
hifi and especially high-end is a combination of precision ,the measurable plus experience and experimentation with all that is difficult to measure with certainty with anything but ear and brain:
soundstage Image rhythm , fidelity sound perceived resolution ,dynamics and more.
Parameters that mean more to the hifi experience than precision alone for most.
This is so because hifi is not a one to one reproduction, it is not flawless , at best a good illusion is achieved, the errors must be chosen with care for least damage to the hifi experience , it is more about choosing the right structure For the inevitable errors , than the amount