Why is science just a starting point and not an end point?

Which is why I added Nelson Pass. You don't think he listens to his amps for the final tuning?

From  Stereophile in 2017:

https://www.stereophile.com/content/nelson-pass-circuit-topology-and-end-science

Pass: Measurements and listening go hand in hand. There is a correlation between objective and subjective, but they're not strictly causal relationships. Clearly, there are some amplifiers that measure great with "standard" measurements but don't sound so good, and there are examples of good-sounding/bad-measuring as well. The discrepancies are interesting because they point to either things that have not been measured—more likely, misinterpreted—or aspects of perception and taste that don't correlate to measured flaws. Or both.

In the end, the subjective experience is what our customer is looking for. Our taste in sound may not appeal to everyone, but it's what we have to work with, and we only need a small segment of the market to be successful. I don't neglect the measurements; I put them to work.

The map of reality is not reality. Even the best maps are imperfect.

I'm sure they all listen to their products where did I say otherwise? I know John Siau at Benchmark does. 

https://benchmarkmedia.com/blogs/application_notes/listening-vs-measurements

audio 101 for children:

-measurements are essentials to know what we are speaking about and establishing recognized scientific standards designing electronic piece of gear....

- Listenings experiments is the ONLY way to tune and fine tune the quality we ask for and which qualities are IMPOSSIBLE to deduce only from any set of measurements nevermind how big it is and how precise...


Why ?

Because many dimensions are at play which no limited measuring tools in their range of application can take into account simultaneously when what is designed is designed FOR ANOTHER HUMAN EARS....


Then audiophiles and engineers trusting only measurements must be rare birds indeed ....

We are not all zealots of our own tool for sure....And most importantly deaf audiophiles and deaf engineers are very rare species....