Value Jet crash is not a reference as they didn't try to ditch the plane but they didn't realised that no one was flying, as all where trying to resolve the landing gear issue.
Florida Air, in DC, ditched in the frozen river, and some lived.
Flight attendants have many duties in the plane. It is not expected of them to be a nurse. They have 300 other passengers to attend. Heck
AWmac, if you are a flight attendant, coping with passengers crap for 9 hours, I doubt that you would volonteer to baby feed this person, carry her to the rest room, wipe her butt. nor would you take the responsability.
Moreover, this person probably requires a full time nurse at home. It is really amazing that this person expected not to need one when she is away from home, where everything can happen.
If you fail to see the point, you should recomand her to use FedEx as an airline, they'll fly her.