Um hello, Terri was brain damaged, not brain dead. If her heart didn't know she was dead neither did her lungs, eyes, voice, etc.... Seems to me that when these things still function than someone is clearly alive.
You haven't been paying attention. Her eyes did not work. All the edited videos that her family posted didn't mean anything.
Edit dozens of hours into a couple minutes, I can show you a videotape that proves the sky is always orange above my house. Doesn't make it so.
Terri was in a PVS. She was gone The only people who claim otherwise are nurses who filed false statements, a doctor who lied to falsify his resume and her family, too distraught to accept reality. It's all very sad, but it's true.