There are many members on bp.net that feed F/T, and there are many users that feed live. It is true that F/T are good to use because of their is no threat to the snake, but if done properly, there is nothing dangerous about feeding live. Many choose to feed live because they breed their own rats/mice, and many feed live because their snakes will take nothing but.
I feed F/T because my bp will take them easily and they are convenient. If my bp went off feed, I would certainly try live.