To be fair, no one is calling Turner elite (yet) either.
The premise of the thread (and video linked in the OP) is that he has the potential/ability to be elite.
I think the poster you quoted was just pointing out that while Cam didn’t have a fantastic rookie year (for a few reasons), he flashed elite-level potential.
Cam realized that potential. Nobody is disputing that Turner might not. It is too early to say either way. People are just pointing out that when he was healthy, he played very well as a rookie.