Well that would be called evolution then lol
It doesn't matter in which direction you go to. To you not using his legs more is not evolved. To him being more of a pocket passer is an evolution to his game. Whether you like it or not doesn't really matter.
Btw, whether I agree with what TH is doing is irrelevant. If he wants to do more pocket stuff and believes on that then that is his to live and own by it. We all make decisions and not all are failures or successes.