Exactly. That's where your invincible ignorance kicks in. She could only have swallowed her saliva by means of the pharyngeal reflex. That's a medical fact about all human beings, not Schiavo specifically. Ergo, she possessed the reflex. There is no room for debate on that. Only your ignorance makes argument seem possible.
Go away with your "if she could swallow saliva, she could eat a T-bone steak" argument.
That's what makes you confusing; you go along being perfectly stupid, and then suddenly you turn around and go all dishonest. Pick one and run with it. Are you dishonest, or stupid? Which?
Insufficient for adequate sustenance. And who would want to provide long term nutrition this way, even if her reflex was not impaired, which the tests showed it was?
You propose providing nutrition, drop by drop, at the point where the reflex is triggered, risking aspiration? Why? To say that you can? To say, "Hey lookee what I can do"? You call this "practicing medicine" -- or simply making a point?
Terri's swallow reflex was barely capable of handling low volume and slow moving saliva that managed to make it back far enough in the mouth to trigger the weakened reflex. Her tests showed she was capable of little else.
Beyond that, you're simply arguing an impractical technicality. Argue that with your Terri-bot friends. I am truly no longer interested in playing these games with you.
(Oh, and your coma patients probably still possessed the cough reflex and the gag reflex such that if you f#@$ed up when feeding them they wouldn't die. Lucky you.)