Because its massively impractical to think the average person is going to get the notice "you've got anywhere from an hour to an afternoon to evacuate" and be ready to convert their vehicle to goal gas and have plenty of wood/coal to actually get through the evacuation.
Yes, this is impossible. If having a vehicle connotes survival such people will perish. My point was only to illustrate there are many ways to make a piston engine go brr and only one way to make an EV mobile.
