The story is not believable. Everybody knows you don’t throw water on an electrical fire. Use CO2 or chemical extiguishers. There will be a big demand for fire extinguishers if EV grows.
No fire dept is as stupid as in the story.
When electric vehicles burn they burn for days...
Typically for to five days...
It’s not an electrical fire.
It’s a light metal fire.
Light metal fires burn hot.
Even if deprived of oxygen from the surrounding environment of atmospheric air, a burning slag of light metal can extract oxygen from vaporized liquid water.
Naaaa-sty!