Well in all fairness I would say EK generally provides excellent and immediate medical care on board. I had a 'death on board' on a ULR; the crew started immediate CPR and maintained it for 45 minutes (which is bl00dy hard work btw) but the lady didn't respond and with the agreement of two medical doctors on board and Medlink CPR was stopped.
Some people are going to go whatever you do! But there have been many successful outcomes in the years I've been here with regards to critically ill passengers...