I don't doubt that the lithium batteries played a part in starting the chain of events that led to this explosion, but the batteries themselves were not the source of the explosion. I expect that the explosion was actually from a gas line or other fuel storage container. Lithium ion batteries just don't react like that or contain enough energy to explode in that way. They are also not sealed containers that can build up enough pressure to let 'er rip in that dramatic of an explosion. EV batteries are still very dangerous and we should not be using them on anything but a small scale so we can avoid bigger disasters like this as well as smaller ones that are much more common.