Some of the greatest sounding musical instruments, in fact most all musical instruments and even concert halls were designed and built without computers and electronic analysis equipment. They were designed and built by artisans with skilled hands and ears. It's all about what we hear. When someone tries telling me I am not hearing what I think I am hearing, well that goes over with me about like putting a tax on a child's piggy bank.
Once more: listening tests are the gold standard in audio research. No one is telling you to substitute measurements for it.
What we say is that don't go believing marketing claims that have no verification with controlled testing, or make sense at engineering level. We prove the latter with measurements. Company claims the power conditioner lowers your audio system noise? Well, we measure that. If the result is that noise has not changed one bit, then you know the claim was wrong.
Why is this so odd for the few of you to accept? You say your local water is making you sick? Folks come out and measure to see what is in it. If it is pure and clean, then that is very important information.
Importantly, don't confuse creation of art with replay of it. Our business is the latter. The two are completely different universes. Audio equipment should NOT be in the business of creating or modifying art. If it is, then it is not high fidelity. And will impart the same signature on every music you play -- something I dislike dearly.
As to what you think you are hearing, that is NOT in doubt. What is in doubt is what you say it means when you did not block all other senses than your ear.