The uncommanded reverser problem that most talk about is Lauda (there are others)
The pinch point in control of the aircraft for some aircraft is the climb portion where the wing control surfaces are defeated by the reverser eflux.
Yes there are some things that might recover but unless you can act real fast in the right direction ..... I know of one where the PF just continued the aircraft roll through 360 deg and completed the flight without his passengers knowing it happened.
The best corrective action is to act as soon as the reverser unlock light flickers and reduce the engine to idle (no need to shut it down in most cases).
If the discussion is to be about business jets alone, then my comments above may not apply.