That wasn't the argument. Kanak's game has elements that are arguably simplistic to an (a naive) observer. It's easy to watch his game (sometimes like Chuang Chi Yuan)and wonder what he does well that makes him so good. His record in the German league is stellar. He was clearly the favorite in the US Open to me this year, even though I don't think he was unbeatable (Olah was a better matchup, but maybe with Kanak's form it wouldn't have mattered). He is small and quick and has extremely strong setup game on serve return and serve (though i sometimes find his serve game a bit lazy but there is likely more variation that meets the eye).
I am just pointing out that one doesn't have to claim he almost beat Dima (and he clearly did not) to arrive at that conclusion. Even great players go through tough periods and sometimes have bad matchups for their style. Kanak struggles with certain kinds of players who can generate extremely high quality. But going to Duesseldorf next year and training with Kallberg and Dang will hopefully address some of that, I suspect training with Duda is helping for sure.