In 'round about typing...
The driver is the ultimate shut down decision maker.
If you can trust the driver to do what's right when the dash lights up, no need for a sudden auto shut down feature.
As luvrbus notes, the sudden stop of coolant flow will allow high localized temperatures within the engine.
We committed types are going to do what we're going to do.
The novice still has to decide what to do with their coach, and are entitled to full disclosure.
Very few of the common man's personal autos will protect against terminal failure, and that's a greater risk to the family fortune than the RV.
happy coaching!
buswarrior