With the current charger technology, there are very few people who would actually need that kind of a range: you basically have to live in extremely rural areas (so there are no fast chargers anywhere), you need to drive multiple hours a day, and you don't have any access to charging at home or at work.

In almost any other situation even on a long trip your bladder, stomach or back will stop you every few hours to take a break, which is enough time for a fast charger to top you back up to the next stop.