I read your posts, you seem like a thoughtful guy
Have you detailed this 'trend' you're seeing?
Well, I'm seeing folks who are accustomed to high-end planar magnetics like HE-500/HE-560/HE-6 not liking them a lot. There are some exceptions, but I'm seeing more folks who have heard those other cans nitpicking the Z7 for its sound.
In contrast, some folks who are coming from lower-end cans are praising the Z7 to no end (I mean, you can look at some of their profiles to get an idea of what else they have).
And personally, I see nothing wrong with that. It would be nice if the Z7 had the technical prowess of planar magnetic headphones, but if it can't, it's still a pretty good dynamic headphone.
And personally, I belong to the camp that prefers a darker, less sparkly sound with good and expansive soundstage and a mushy, less exciting/aggressive sound, so the Z7 is still one of those headphones that I will try the first chance I get.
The thing is... the Z7 has the advantage of comfort, and its closed design makes it appealing for those looking for a transportable setup.
I hardly listened to any lower end headphones as I was on the prowl for my ideal setup the whole time lol. But I made an exception to stop and talk to Jeff and listen to his z7 in between. So yes, they were going against world class headphones lol. I'm still amazed at some of the cans I heard that actually hurt my ears.
Yeah, some world-class headphones, for some reason, have a tuning that's less agreeable as far as listening comfort goes. That's why I don't like the HD800, HE-6, HE-500, etc... (the SR-009 is okay thanks to its speed, but it's still a bit too bright)
It wasn't until I modded the HE-560 that I could truly settle in and call it the best headphone I have ever heard.
And that's only as far as sound goes. As far as comfort goes, God... the last Hifiman headphones clamp so friggin' hard, and Audeze headphones are very very heavy even though their tuning is much more to my preference (save for soundstage and airiness).
I think the Z7, for all that it doesn't do (technical stuffs), at least does some things well like comfort and listening fatigue, and I think that should be on top of the list for most higher-end cans.