Does anyone really believe that a safety briefing, a safety card or a online quiz will prepare a passenger for an emergency?
Today, as far as I know, the merchant navy require a basic 5 day safety course, add another 10 days for officers and you will be allowed to set foot on deck.
In my days at sea we had drills every week in evacuation, fire fighting and first aid for two to four hours at the time and still, in every emergency I encountered at sea, be it grounding, fires or accidents someone froze, panicked or got it all wrong.
And you expect the average passenger to behave rationally in an emergency in a, to them, unfamiliar environment?
Better consider us all worthless and plan accordingly.