I tend to agree with RLT over this. I think what he is getting at is that deck crews are trained to make sure that the lifeboats are deployed in an emergency and just like anyone trained to do rescue work on land it is the training that kicks in before self survival. Anyone on deck will tell you that there is more training for them than just doing boat drills that passengers or other crew members attend. I never got my boat ticket hence only staying as EDH but had to prove myself to man the boat stations to deploy the lifeboats in an orderly fashion it was part and parcel of being on deck.
That's the way the mop flops.
My thanks to Brian for this site.