Sure, it's a worst case scenario.
How about "someone who's traveling on the exact same bank holiday as the rest of the country, and will not for the love of any deity wait for an hour on a packed highway station while every one is recharging ?"
My point is not that "it's what people actually need 99% of the time", but that "the worst case" is the bar to clear.
Ironically, it's kinda the same issue as electricity grids, except you can't buy range from your neighbors.
Oh, and it has to be cheap, too, by the way.
I honestly though it would be done by the 20s. It's getting harder and harder to argue for EVs every year that goes by without such a model - which also happens to be "every year that goes by without me being able to afford an EV".