Does anyone know if there has ever been a pair of speakers sent to him that he couldn't improve? Just says "nothing to be done here, it's perfect".
I've seen such videos, I think. But they're rare. They could be instances of honesty on his part or just a way of ensuring that the other criticisms seem more justified.
Bottom line, these videos are just his professional opinion, anyway. Others will disagree and then how does one decide between them?
In the end, I look for the economic incentives for these guys. How does it benefit them to say this or that? Are they selling more of their stuff with these views? Are they attracting viewers with their "bad boy" schtick (oh, Mikey...)? Are they building confidence in their objectivity as a reviewer? It's pretty hard to know how the bread gets buttered.