It's like saying -
"We should let Dez run back shoulder fades all game, it's what he's good at!! I know the coaches only have a limited amount of time to work with him and teach him to run other routes, but Dez is only effective running the back shoulder fades!! We are wasting Dez having him trying to learn other routes!!"
After he becomes slow, beat up, and set in his ways from years of "getting by" being a "running" QB, do you expect Dak to suddenly learn propped footwork in his 30s?
Stephen knows what's up.
If Dak doesn't learn how to be a pocket QB now, when will he? He's already behind the curve for his age...
God forbid we sign him long term and have a guy that can't run anymore and never learned the propped way to play the QB position.
It'll be Dez Bryant all over again.