Wonder how much this false FCW implementation affects FSD beta!!
FCW don't count against your score when you are using auto-pilot, or FSD beta.
There is a stop sign for a side road (no stop sign on the main road) that the car thinks is a person in the road. When the car switched to vision only, I could not drive past that stop sign without getting a FCW. I finally learned to use auto-pilot to get past it. Still got the FCW, but it did not count against the safety score.
The other common way I got FCWs was if a car far ahead of me decided to exit the road into a driveway, that would trigger a FCW even though it was clear the car would be completely off the road before I was close enough where I would have gotten a hard braking penalty if I came to a complete stop before I got to where he was.
FSD beta still gets FCWs, and phantom braking hard enough to trigger the hard braking penalty, but they just don't count in the safety score. That means I only have to worry about FSD beta trying to annoy other drivers with its antics.