the challenging conditions
Was it a 'Captain's' approach due to being out of First Officer's limits?
If so, would there have been a suitably qualified pilot in control of the aircraft for the landing in this circumstance with the Captain [technically] incapacitated and the FO out of limits?
I know FOs practice Captain incapacitation drills as a part of their training, but surely it would be prudent for any medical assessment of being 'fit to fly' to be based on the scenario where (in this case) the pilot with the disability must be able to prove he could maintain control if the limb became detached AND the FO was incapacitated/out of limits?
The one overriding factor in all training scenarios (including explosive decompressions, bombs onboard and double engine failures, for example) is that there is ALWAYS a procedure that should ensure a successful outcome in any event. There is NEVER a procedure which does not have a checklist nor an event that does not have a means of achieving a successful result.
We never train to fail.
This situation does it seem, in theory at least, provide the potential for an scenario with no successful outcome.