nice post, but a couple items:
when has Amir said he knows everything? I am not a regular follower of his content, so I could certainly have missed it.
given the history and the current state of the industry, rife with snake oil, pushing manufacturers to back up their claims is 100% a good thing.
listening is subjective, and very influenced by biases, but with the appropriate balance of objective information, you can truly develop your listening skills.
there are way too many people on this forum (and others) that would buy a special “audiophile” air purifier for their listening room thousands of dollars, and then in every post, they are a hammer looking for a nail as resolution to all subjects and issues.
there are always two sides of the coin, and if you force a division, nobody wins.