I don't think the Boeing failure would cause a runaway in a Tesla battery, nor any other electric car allowed on the road, nor in the redesigned Boeing 787 batt

I don't think the Boeing failure would cause a runaway in a Tesla battery, nor any other electric car allowed on the road, nor in the redesigned Boeing 787 battery pack. The Tesla club comment at the top of your link is about a Roadster, not a Model 3.