Yes, these are difficult situations, made more difficult with the sensationalisation culture that exists today. Nevertheless, although I don't dispute Otto's reasoning, one has to balance that with leaving pax uninformed and consequently perhaps (in some cases) a little distressed. In this particular case it was apparently obvious to the pax that the CC themselves were puzzled and in contact with the FD. Perhaps a few words of reassurance from the FD wouldn't have gone amiss. But I do agree with Otto that finding the right and satisfactory explanation can be challenging.