The bit about watching DVDs is for the traffic jam mode, where it is crawling forward locked to the car in front of you. Pretty much the same as automatic parking features. Thankfully they won't recommend having a snooze though, since you will need to take control at the end of the jam or at an intersection. The warning about overestimating capabilities is on the rest of the features, where failing to respond to a request to take control will assume you are asleep and do an emergency stop. It seems to be a bunch of apps that you have to select and turn on/off manually, rather than 'autonomous driving'. ie. it assists you driving, rather than you assisting the car to drive itself.