Decent post. You made some very good points. Outside of this quoted portion. And then you ruined it.
The mobile QB has no advantages outside the pocket? That's a straight up retarded take.
Because over time it produces a negative. I’m not talking about Allen breaking a Rush off for gains. They don’t hold value long term for the positive to outweigh negative.
QB breaks pocket routes break down
Routes break down then more times than not D has advantages
Linemen make more mistakes
The field shrinks D has advantages
The field shrinks and the QB is more prone to mistakes
If being out of the pocket was such a big advantage for mobile QB then teams would constantly call plays for it. Sure mobile QB will make plays outside the pocket but over time it’s more of a negative impact. Teams literally force mobile QB out of pockets and to one side because they have a advantage.