Wish I had a nickel for every time someone posted a similar presumptuous sentiment on this board in the last few weeks. I'd have enough to make a generous donation to FR. OTOH, it'd be dirty money.
It's one thing to express such a "presumptuous sentiment" re a person whose wishes have never been clearly expressed anywhere. It's a completely different thing to express them (as is alleged to have been done in this case) re a person who has gone to the trouble of executing a living will, and spelled out very different criteria.
However, I tend to think this story in its present form is a hoax, or a well-intentioned embellishment of a true story. Hospices don't like to get sued, nor do their insurers sit quietly by in situations like this. If there isn't a clear court order to withhold nourishment, and there is reasonable doubt as to the legal authority of the granddaughter in question to be making medical decisions for the patient, the hospice would stick the tube back in fast, and wait for a definitive decision from a court.