How misleading is the Schiavoe Tape?

Very. What is the difference between a coma and a persistent vegetative state?

Of Cabbages and Kings offers the answer.

The Schindlers think this is a coma, but comas don't last beyond about five years. This one has lasted since 1990. This is a persistent vegetative state. Terri is gone. It really is that simple, and her husband, Michael, now understands this. Her parents, unfortunately, either do not understand this or more likely, do not accept this.

With Randall Terry in their house, how likely is it that they will accept it?