Looked like the pump handle was holstered on the pump though. I've also had refueling issues where it would constantly click off and thus I end up overflowing. Once by a lot since someone had approached me and I became distracted. This was also after a long spirited drive so the engine compartment was super hot. Luckily nothing happened but that video really makes me nervous.There's a thread on here about difficulties when refuelling - I even noticed a drain hole behind the flap (720S, not sure if you also have it). Maybe it's only certain styles of pump nozzle - but often it won't let you refuel unless you find the perfect position or go really slowly. And once, when going quite slowly, I had an overflow - it wasn't much and it went down the drain hole. Still a little concerning.
I just thought that may have happened as the car appears to have burnt out at a gas station.