No disrespect but slicers tend to have the opposite alignment, handle behind the clubhead at impact. If you are swinging in-out you would need to have to have the face aimed right A LOT for it to slice. Pushes and push fades, sure, but slices are very rare.
Correct, it's about how the overswing occurs. Those guys you mentioned keep pivoting throughout the backswing, when their pivot stops their arms stop. From my experience you typically don't see that with slicers who swing past parallel. Their pivot stalls and they keep loading the arms independently, wrist angles "collapse" and they get very narrow.