I have no real issue with a system that has no memory or logging of events and only exists to help me, not to cause liability to fall on me because the system,

I have no real issue with a system that has no memory or logging of events and only exists to help me, not to cause liability to fall on me because the system, possibly erroneously, logged I took my eyes off the road for a split second 30 seconds before an incident. Or insurers using false positives as a reason to raise rates. And saving the video is right out. But there's no such system, nor is there any trivial way of demonstrating that such a system works that way. Because all car companies and insurance companies want data.