Him playing as a treq with mainly a free role doesnt mean he suddenly needs to stop scoring.
And is not like we do not have players who can score goals apart of him. Mandzukic, Morata and even Zaza have demonstrated that if they are in the area, they can score.
Dybala can easily transition and relocate himself from Treq to SS to whatever. He is not a fox in the box anyways. Ironically, most of his goals have been middle range shoots or plays which start outside the box.
UNlike pogba, he keeps thing simple and has an eye to locate his teammates.
Also this way we could field fromt ime to time the 3 of mandzukic Morata and Dybala.
Its definitely worth a shot, or at the very least soemthing we can think about