Re: "more of a super-cruise-control"
Apparently other manufacturers' (GM?) systems have eye tracking cameras, which tells their cars where the driver's eyes are looking. No eyeballs in place looking the right way, no-go.
I gather that eye-tracking tech is fairly mature, reliable and not especially difficult. Given that such a thing is pretty good for when the driver starts nodding off, that alone is a safety improvement regardless of whether the car is self or human driven.
I like the idea of a car auto-posting "warning, my driver is an idiot" pictures!