I have not heard any of those IEMs, but from the info I have gathered, I too think they might suit my preferences.I red some of your post and actually I agree with some of your thoughts.
With experience I know what I like and what I dislike, typically I hate (too) forward high mids like we see quite frequently now with IEMs following Harman target for example so most of the latest "hyped" IEMs won't pleased me. Latest disappointment : NF NM2+. Way too bright for me.
I have no problem with high extension though.
I'm still interested in these Zen but I'm concerned when I read some comments from some reviewers. Not sure they will please my ears.
Did you try something like oriolus mk 2, TG334, or andromeda 2020? Fibae black ? Ak t8ie mk2? sony m9? Or even Empire Phantom?
This hyped new tuning maybe has something to do with EDM type of music which I never listen to. No offence but some modern music I've heard I won't even call music , it's more like noise to me. Maybe it has something to do with that. Something else I don't get is why one would appreciate more clarity and details that come with a certain tuning at the cost of musicality and naturalness.