[_urga]

"How can we be sure that our radar sensor does not trigger an unintentional break due to a plastic bag blowing in the wind? We collect 10000h of real world driving evidence."

10,000 hours of real world driving data is probably several orders of magnitude too little? Would that really give you confidence that a system can handle a plastic bag blowing in the wind?

I would have thought that this specific scenario would also depend more on factors such as: likelihood of the object being a person or animal vs inanimate, estimated cost of impact to the object and car, and secondary consequences of a rapid deceleration of the car.