A lot of my interventions when trying it out were things like it going too close to curbs for my comfort, so more violations of my own defensive driving standards rather than potential accidents. But! It did have some near traffic violations that would have happened if I hadn’t intervened.
But the distance between my own driving standards and accident is large.
Do you have an exact read on where the wheels on the other side of the car are relative to a curb when you're turning? I don't, so I give it a healthy error margin, where I'm certain it won't. I'm reasonably confident it wouldn't have made contact without my help, but that's not good enough for my driving standards. That mismatch was consistent enough that I ended up not using FSD anymore, it was more stressful than not using it at all.
Also, tire-puncturing junk tends to build up next to curbs, so there are other reasons for my margin preferences than just avoiding accidents.
But the distance between my own driving standards and accident is large.