It's not stronger.
It's exactly the same. It's reimplementing the same ability in a slightly more user-friendly fashion.
Take Prioritise Vehicles. You don't actually
need that ability: you can manually retarget the tank constantly in a fight.
They added it because lacking it generated a load of unnecessary, frustrating extra micro to make your tank perform a simple task.
This is the same. The Ambulance doesn't gain any extra capability. The difference is you can tell it what to do and do something else.
Or just add med crates for rear echelons
What about med crates on the medics?