Serious errors, apparently: reportedly the PNF had not selected the Ditch switch, nor notified the cabin crew of ditching.
Hat it been on UAL, with their channel 9, some of the pax would have been aware of the upcoming ditching and warned the rest, at which point the cards would have been read, and life vests brought to mind.
The possibility of ditching in a river or harbor, rather than in open ocean, may not have been seriously considered in the past, and may require some re-thinking.
GB