Modern petrol pumps have break-away detection, it can recognize when the nozzle/hose is broken along the chain - I _think_ it works via the nozzle being lower gauge, which means when the flow rate suddenly increases there must be a high volume leak in the hose. And even then, it's only a few liters a minute. That's enough for a nasty fire, yes, but you can usually extinguish it with a handheld extinguisher.
Cars, at least modern cars, are also built with safety systems in mind. The fuel line from inlet to tank isn't open as it used to be, nowadays there's a spring actuated flap that is pushed aside by the nozzle (as well as vapor suction systems in the nozzle) so vapors cannot escape and form an explosive atmosphere.
On top of _that_, all parts from nozzle over hose to pump to tanks have safety features to prevent a catastrophic explosion: flame arrestors and inertization, and buried tanks.
So, we didn't ban petrol stations, but in the interest of safety and environmental protections (reduction/near elimination of VOC escape) we mandated changes in how cars and petrol stations are made so that even the dumbest possible user (aka, someone smoking a cigarette right next to his Ferrari getting refilled with 102 octane fuel) will more likely than not either not explode at all or the explosion will be relatively harmless in scope.
There is really no difference between the two cases, because any EV chargers will also have multiple levels of over-current, over-voltage and short-circuit protection, i.e. both at each charger and for the entire charging station.
So not even an exploding car would be able to prevent the disconnection of the chargers by some of the protection circuits.
The issue here is that interrupting a 7.2kV 50A current is not easy. If an arc ignites, it can keep the current flowing for quite a while. Long enough to kill anybody unlucky enough to be a part of the ground fault path.
Cars, at least modern cars, are also built with safety systems in mind. The fuel line from inlet to tank isn't open as it used to be, nowadays there's a spring actuated flap that is pushed aside by the nozzle (as well as vapor suction systems in the nozzle) so vapors cannot escape and form an explosive atmosphere.
On top of _that_, all parts from nozzle over hose to pump to tanks have safety features to prevent a catastrophic explosion: flame arrestors and inertization, and buried tanks.
So, we didn't ban petrol stations, but in the interest of safety and environmental protections (reduction/near elimination of VOC escape) we mandated changes in how cars and petrol stations are made so that even the dumbest possible user (aka, someone smoking a cigarette right next to his Ferrari getting refilled with 102 octane fuel) will more likely than not either not explode at all or the explosion will be relatively harmless in scope.