Even if there were to be a charging station on every corner, the problem of time would remain. I sometimes make an 8-hour trip to visit relatives in another city. The time includes a half hour stop for lunch. I fill up maybe three times, but it takes just a few minutes, so it doesn't add much to the trip time. If recharging takes 30 minutes, it adds an hour and a half to my journey, and that's not counting potential wait time for a free charging station, likely as the extended charging times means more stations are needed than gas pumps currently. Another factor is what do I do while waiting for the charge to complete? Lunch once, maybe, but what if a particular charging station did not have some kind of shelter nearby, and it's pouring with rain? I guess I sit in the car.
All that goes away if the car can be charged in a few minutes, which is why this innovation, if it works out, is so effective.
Just as an aside, I've wondered if changeable batteries would work, like the way we handle propane gas. Drive in, sit in the car while someone takes the depleted battery out and fits a charged one, pay, off we go! Meanwhile, depleted batteries sit in the back of the facility charging, ready for another user. When batteries wear out over time they are replaced with new ones, old batteries are recycled, and the whole thing is funded by the charging fees.