Didn't see a link to a video...? I should go hunt youtube?
....[found] yeah, looks a little 'sparky'. I like the bit where some separated bit of battery pack on the road just goes up like a firework!! woohoo!
Y'know, that obviously doesn't look like a ICE fire would look, but it looked no worse than I would expect if a fuel tank had ruptured in that sort of crash. Hammer any >2 ton car like that at 100 mph into two pieces and I don't think anything unexpected happened there.