Rat 5 I would assume someone on a command course should know their aircraft so technical stuff should be "as read" unless lack of knowledge shows up. The command check should be a complex senario possibly with no correct answer but the check airman should be looking at the methodology & reasoning the candidate is displaying. This crew I am sure knew the system but got "thrown" by the unusual nature of the event & failed to respond appropriately. I am not a great believer in the quoted "musle memory" as in my experience aeroplanes never fail or do what they do in the simulator. It takes a PILOT to cope. Unfortunately they are few & far between these days. Not the individuals fault it is their training departments. So many people apportion blame when in fact it is human to err & their selection & training are shown wanting.