Costa Concordia gave us pause at the time, but we easily resumed carefree optimism until the 2019 Viking Sky emergency. It's difficult to predict how passengers will respond one way or the other in an actual emergency based on muster drill behavior. During the Viking Sky drill, we observed the usual passenger grumbling (one person, drink in hand, maneuvering the stairs without difficulty, complaining all the way down several decks that she wasn't allowed to use the elevator) and obliviousness (attempting to take a seat in the MDR muster station, we were told by a fellow passenger "You can't sit here, these seats are saved"🙄). Yet when the actual emergency commenced, we were impressed by the reasonably calm compliance and cooperation we observed among our fellow passengers.
On cruises since then we've been a bit more organized, making sure that any vital items are ready for grab and go if needed. Yet our pleasure in cruising remains undininished.