Respectfully disagree. And I think being a starter at a national level certainly matters in the context of this. He is a bonafide holder because he team just finished 3rd in the PL with him holding, and he has established himself as Undroppable for his national team.
You saying he is overrated because he is in PL kind of proves my point. Unfortunately I deleted your list because I would love another glance at it
I don't need Dier or Casemiro to be super technical, but both are certainly proficient enough in that department, and are much better positionally than you give credit for. Also both are young and are growing into that position. They will improve. A lot of teams have a veteran guy in that spot. I have two young guys who can do it very well, and are getting better