You could just create it for the human player, although it's not as cool.
Taken from maps and trick archive
QUOTE
- Restoration -
*Seem to only use this on locked down units and ones stuck from maelstrom
*May use it only once or not at all even but you can provoke them to use it over and over if you attack the medic with something like a ghost
*They will use it on hero units but not allies
*Using a Terran melee AI seems to encourage more use