TL; DW, he basically said the headphone sucks (sonically) and much cheaper headphones are better.
Brutal.
I keep Valour around in my sub feed just because even though I've almost never agreed with his preferences, he offers a contrasting view and he doesn't come off as pretentious about it.
That being said, in this review he sounds like someone that mistakes treble presence with detail, which is kind of a rookie misunderstanding. And that's strange because he's been doing this for a while now, and he's not factually a rookie, but I guess he still hangs onto some of those assumptions. And thus he lands on the opposite conclusion pretty much everyone else has about V2's "class-leading detail".
And for the record, when he asks what AMT is offering... It's the treble. The treble quality, cleanliness, smoothness, timbre is its best attribute.