It's not like the TrafficAware Cruise Control is meant for completely autonomous driving. It's supposed to be a convenience.
To not pay attention to the road, regardless of how good your cruise control is, is not just idiotic, it's life threatening.
Have they not mentioned, time and time again, that this is not an autonomous car? I have adaptive cruse control in my Mazda, automatic breaks, but they're not a replacement for paying attention to the road.