Report it. The triggers for it when it happens. (( I've started doing that for post speed limit data errors. )) People are claiming they get actual, human interaction out of this at times so someone is sifting through those voice active "Bug Report"s.
I barely ever had true "phantom braking" although I did regularly see somewhat off/misapplied braking/slowing for cross traffic and other situations. That's done nothing but improve month after month since I've owned the vehicle. It has constantly improved on positioning, and speed, when holding lane in curves/corners. There is the stop light as a warning (which I've only seen triggered once) for completely new feature. And the list goes on.