Please forgive my not knowing who PAT is, copilot?
then you can worry about rolling the wings level, prior to resetting straight and level flight using PAT!
The exercise is though to demonstrate that the bank angle can be controlled through the stall (the aforementioned design requirement that we are testing for). For this reason, it's not an option to let it get away, then get it back later.
In a more practical sense, pilots would like to feel assured that if they foolishly allow the aircraft to stall (short final perhaps) they can have some faith that when they recover it, it's still pointed more or less where they started, with the wings more or less level, presuming they put the proper corrective effort into the recovery.
So why are some pilots trained that the proper recovery effort does not include the use of ailerons, when the design requirement says it should?