The best safeguard is to work with the family and with the person who has the new injury and connect them with families and individuals who have gone through this initial phase of terrifying shock in many ways, and have gotten through that and have rebuilt amazing lives. Many lives are, as I said before, stronger and more satisfying than they were before the injury.
Certainly not mentioning the option of MAID to people with new injuries would be preferable, and just not having it available until people have had an opportunity to test life and to find out the kind of dreams they can build and will be able to pursue in their new life.