Very interesting. You see, medical decisions are tough. I am confident that Terri's sitiuation is different from the situation she witnessed with her grandmother. Her grandmother was on a machine. Terri is not. So, she is not in a situation like her grandmother. While her comment, if accurate, is interesting, it shouldn't be taken as determinative of her wishes regarding sustenance and hydration.
The other fantasy concocted by the media is that she will not suffer. They bring in doctors to harp about "the end of life" and how there isn't pain, etc.
Of course this only takes place with people suffering organ failure and have no further will to live. The brain stops sending warning signs (read: pain) when malnutrition is occuring. A living, otherwise healthy (read: no organ failure) person will be governev by survival instincts. The brain will send message after message after message (read: pain) to any and every part of the body affected, to tell Terri to eat or drink something quick.
There is a MASSIVE difference. People will drink their own urine to survive if stranded in the desert. Terri is not "dying". Her body will respond to malnutrition accordingly.