Once again, you beg the question.
The REAL question is whether Terri was dying--that is, whether other bodily functions were shutting down on their own.
The answer is "nope."
And it IS a moral obligation to feed and hydrate patients who are otherwise living, even if they don't meet your personal standards of "living."
*YOU* believe it is a moral obligation to feed and hydrate patients who are otherwise living.
I do not believe the body is capable of living if the body can no longer chew, eat or swallow their food, AND their brain is not functioning enough to assist them in swallowing.
Morally I disagree with you. I believe in God, and I believe differently than you. That does not make you morally superior to me.