When these automated cars can complete a journey __without__ handing back to the human, only then can those journey miles be added to the miles driven under autopilot claim. Until such time, consider all automated cars a considerable risk to other road users.
How are you defining automated? No truly autonomous cars are available yet, so they're all some form of driver assist. How are these a risk to other road users, and at which point do they become a risk and not a safety benefit?
Auto-pilot is semi-autonomous... I gather you consider that a risk...
What about Subaru EyeSight? It can autonomously brake. I can drive for hours on the freeway without ever hitting the brake nor gas, even in stop and go traffic. It has warned me multiple times of a sudden slowdown just as I noticed it. It hasn't yet saved me from anything, but if any of those circumstances I'd been distracted (even for a legit reason) it could have. It once warned me of a motorcycle in my path on a very dark night when the dim tail-light of the motorcycle was overwhelmed by the much brighter tail-lights of the cars to its left and right. I would have seen it soon enough, but the car saw it first. Is that a risk to other road-users? Yet, it's automated by some definition.
What about various other manufacturer's lane keeping features? That automation to some degree.
What about ABS? Stability control? Again... automation to some degree.
All of these have their detractors, yet I think statistics clearly show an improvement with each level of driver assist.
