I don't know who told you that either, but that's exactly what happened. They figured that if they surgically removed it, it would most definitely result in Terri's death. But they weren't counting on the Internet and the power of prayer.
do you remember when the Terri's Law came into being and Terri was taken back to the hospital to have the tube put back in? Felos was told them that they better not put the tube back in or he would sue the hospital!
And this time, they have a bigger audience watching them.