As I said, he was next to a building - a nice lateral reference, had a variometer - on which the eyes needed to be scanning IN, together with remaining power in hand.
At the end of the day, the pilot got into IVRS and responded badly. And everyone died. I think it is a fair critique to say an avoidable event was caused by poor procedures and decision-making. The pilot was just another passenger along for the ride.
And most importantly for this thread: Vuichard would not have helped this pilot one bit.