I will take your hand ,Read me: measures in INNOVATIVE amplifier design are GUIDED by the designer EARS
His ears? Why on earth should I trust his ears? What training and qualifications does he have when it comes to his hearing? Can he hear to 20 khz? What level of noise and distortion can he hear? Is he not influenced by wanting his own product to sound better?
But let's say all of that is true. Don't you think we should verify? If a manufacturer says their amplifier has incredibly low noise, don't you think we can measure that? What it he says it produces 200 watts; should we not verify that? Let's look at an example in the form of Bob Carver. Many people are his fans and think he has incredible abilities just like you are vouching for your hero designer:
Carver Crimson 275 Review (Tube Amp)
https://www.audiosciencereview.com/forum/index.php?threads/carver-crimson-275-review-tube-amp.29971/
It sadly is a noise and distortion factory:

But let's put that aside. As the name indicates, the amplifier is supposed to produce 275 watts. This is what it did instead:

Yup it blew its fuse after just producing 29 watts!!! I replaced the fuse and tested again:

Even burst power to the right produces 75 watts, far short of of claimed 275 watts.
At 20 Hz, power drops to just 14 watts:

And look at the level of distortion, it is off the charts!
You see the power of measurements? We are able to reliably and convincingly show that the famous Bob Carver who could do no wrong, indeed and done a lot wrong. He had misled his customers by a mile. And I say this sadly as someone who bought his receiver back in 1982!
I suggest you put less trust in people's claims and seek out independent analysis of audio technology. This is what your fellow audiophiles are doing. Resist the temptation to ignore science and engineering where it can generate so much useful information.