The problem is that the leftover 5% are the hard cases. When a driver is completely unengaged 95% of the time, the liklihood of (human) failure is much greater than if they were piloting the vehicle full-time.
You glide by with _when the LM(Ai) is wrong, I just move on.._ as if you were magically born with some intuitive ability to detect wrongness.
I imagine you have _experience_, prior to LM, that gives that ability. Where will that experience come from?