If you look at charging in remote areas, you might be surprised.

That's just fast charger coverage, the ones you use during a road trip. Every three phase outlet, 15 amp caravan power outlet or plain old 10 amp outlet is also good for a charge if you're stopping overnight and have the appropriate connections.

There's coverage holes deep inland where you can drive 500km away from a charger and then be unable to get back, but they're a lot harder to reach than you'd think. Almost nobody goes to those places, that's why there's no infrastructure there.