At this point I think you're just arguing for the sake of arguing.I think it's silly to consider only the upside potential of having video available while ignoring the downside risk.
But whatever, you do you.
Incidentally, the PO can easily contact your cell carrier and determine whether you were on the phone when any accident occurred, no court order needed, although they can easily get one.
Please show me where I only consider the upsides? I acknowledged that under some very specific and rare circumstances a dashcam can work against the user, but those would be very rare and usually tied to the user's lack of judgment and talking to much. And you failed to show me any rear world examples.
So you tell me what's more silly. Using the tech for your advantage, even though there is a very small chance of it working against you? Or, being hyper focused on a very rare circumstance, without any actual proof of it happening, and making your decision based on that?