You are seriously concerned that you might have an emergency, and need to drive more than 600 miles, and having to stop and re-charge for an hour would just make the emergency worse?
It's not the need to drive 600 miles - it's the need to drive any reasonable distance with minimal delay. Consider a drive that takes only 1 hour, and you just got home from your commute so your car's energy reserve is almost empty. With a gas car, that 1 hour drive takes you 1 hour and 5 minutes, plus you can have reserve to take you farther. With an electric, that 1 hour drive takes 1 hour 30 minutes.
The argument that "if it's a real emergency, use uber" posted also makes no sense - how long does it take for a taxi to arrive? Not everyone lives where there is a low-latency taxi service.
The simple fact is, current state-of-the-art electric cars are more restrictive than hydrocarbon-fueled vehicles and the current hydrocarbon refueling infrastructure. Do electric cars have benefits over liquid fuel? Yes, they do, but I do not buy arguments that they are not more restrictive.
In the future, perhaps these restrictions will be lifted, or hydro-fuels will get more restrictive. But I would argue that, as a society, having more restrictive transportation technology is hardly an "advance".