If Terri had expressed a desire not to be kept alive by artificial means, her frame of reference is Karen Ann Quinlan, kept alive on a respirator. Feeding tubes were not considered artificial means at that particular time. Therefore, Terri cannot be condemned by withdrawal of food and hydration because it was not an artifical means during a time she would have made such a statement ... if in fact, she ever did.
Evolving definitions. Lovely ain't they.
It gets better. When Ms. Quinlan's respirator was finally disconnected, she started breathing on her own. So if her case is to be cited as a frame of reference, that would suggest that Terri should be given therapy to take food by mouth.