I don't know if you started typing your comment before I got my edit up or not, so I'll give you the benefit of the doubt.
Yes, unexpected braking events can cause rear-end collisions, but that was not the point of this study. If a pedestrian walks in front of a car unexpectedly you can either try not to hit them by braking (or possibly swerving if the situation permits), or you can just take the action you're implying and plow right on through them because your unexpected braking might cause some other people to get hurt.
My 2016 Subaru Forester with Eyesight has gotten confused and applied the brakes while weaving through the gates at military bases (these are low speed and lined with barriers), but other than that I have had no unexpected braking events in my car that weren't justified. In 40k miles the Eyesight system in my car has helped with about six close calls (I can't know if they would have become collisions), and haven't been rear ended. Right now I'm going to say that AEB systems add plenty of safety value to offset the increased risk of a rear end collision.
Yes, unexpected braking events can cause rear-end collisions, but that was not the point of this study. If a pedestrian walks in front of a car unexpectedly you can either try not to hit them by braking (or possibly swerving if the situation permits), or you can just take the action you're implying and plow right on through them because your unexpected braking might cause some other people to get hurt.
My 2016 Subaru Forester with Eyesight has gotten confused and applied the brakes while weaving through the gates at military bases (these are low speed and lined with barriers), but other than that I have had no unexpected braking events in my car that weren't justified. In 40k miles the Eyesight system in my car has helped with about six close calls (I can't know if they would have become collisions), and haven't been rear ended. Right now I'm going to say that AEB systems add plenty of safety value to offset the increased risk of a rear end collision.