Not if you are making technically implausible claims...no.
In many instances (not all, but many) we really can say, through measurements, that "X is bad" or "the difference you heard was in all likelihood your imagination."
It doesn’t matter what room you listened in. That would be like saying "I saw a working Perpetual Motion Machine!" A physicist explains why that is impossible and you reply "But did you test it in the guy’s GARAGE where I saw it? If not...your opinion doesn’t count!"
Instead of trying to understand my point...You put something i never said in my mouth here : 😋
For sure it is POSSIBLE to say with adequate measurements that some piece of gear is badly designed... Engineers know what they do in their design and used standards ....
Where i did speak about the contrary?
But you commit to an error if you think that measuring will be enough in ALL CASES and all time to judge between two products of similar price and/or design...
You are intelligent for sure i dont doubt it and you already said that in your first sentence: yes you are right i dont make implausible technical claims either...
Acoustic method will not transform miraculously a bad design in a good one...
But now put my posts in their context, it is necessary ALSO to correlate listening with measures...
And between an upgrade in gear for example most of the times and acoustic improvement , the greatest possible improvement could come and come often from an improving controlled acoustical environment Why?
Because no piece of gear work optimally at his peak sound level PERCEIVED quality in a bad room or in a room uncontrolled...
We must learn how to listen (acoustic/psycho-acoustic) audiophiles or engineer alike...
I never say that Amirm measuring could not be useful, i said that some of his bullying disciples make communication difficult here or there...
It is the same here where a few are agressive toward those who focus mainly on measures...I myself trust only correlation method...Because we all love sound and music at the end...
My best to you.... And deepest respect...We may differ on many subjects but i know that you are an honest person...