You have a duty of care....or as you put it a 'moral' requirement to be able to hand fly the aircraft. Early today the autopilot fell out on base leg for no apparent reason and my F/O handled the situation admirably. No less than would be expected of an ATPL holder current on type.
If you can't hand fly it then you have no business being in the flight deck. When the automation fails you are the one who has to ensure the continued safe conduct of your flight....if you never practice hand flying you will not be best placed to do this and it would not surprise me if some clever lawyer managed to sue you for negligence (if you happened to survive).
PP