A roll of duct-tape fixing the steering wheel and the accelerator pedal would be the rough equivalent of an auto pilot for cars if you want to take that analogy as far as it will go. So clearly 'auto pilot' was marketing speak rather than a literal description of what the device is supposed to do leaving a lot of room for interpretation. This has already led to a number of fatalities and may lead to a bunch more of them, and all that because naming it 'driver assist' would lose a couple of sales, but would accurately describe what's in the tin.