@inthehands @DrGeof
To do it justice, you need to speak to specific risks. Not handwaving.
To ignite, I think the battery would need to be physically damaged, or else overcharged. If the BMS could be reprogrammed OTA, it's possible to make cars that burn while plugged in and charging. That would be horrendous.
But that's not the same as the implied "Halt and Catch Fire" command from the cloud.