Accidents will happen again no matter how or what you change. But to blame it on fatigue, I think is wrong. Not being in command of the cockpit, to me, was the reason for the accident, so yes it will happen again. Was the type of stall, if that was the primary cause, easy to recognize? Probably not at night on instruments. Everybody has talked about crap when they legally weren't supposed to, but if it is managed by the pic it will be ok. But your right it will happen again and lots seem to happen at night, so WE need to pay attention.