The NKE has a mob function. In solo mode, any further than 50m between the crew worn transmitter and the boat and it turns the boat head to wind.
Still wouldn't like to swim after your boat in the southern ocean.
I've heard that too- it's a good idea, and I can for sure imagine it working for a mini or something else smaller.
Would the pilots be good enough to turn a fully powered-up 60 into the wind and hold it there? I'd imagine there'd need to be something there to dump the sheets as well- like upsideup that the big multis have to stop them from capsizing.