Are Our Self-Driving Vehicles More Susceptible to Be Rear-Ended?

The waymo car was theoretically rear-ended and brings begs the question, are our self-driving vehicles more susceptible to be rear-ended? I know that wasn't the scenario is pulling from real life, but it's one that perhaps a lot of companies have seen in testing. So with the rear-end cases, those were cases where there was an unchanged situation. And that was because of the fact that we were standing still. The margins for being able to reduce or avoid that is the very, very small margin.