10 hour is without stops, so at best 11 hours with some stops (thats and average of 90 km/h). 75 min is for full charge, where the first 50% take 30 mins, so there is something to be gained, but even if you keep with 15 hours, that's 36% longer.
Is there a difference? Sure, petrol cars are faster for long range driving. Still VERY far from "no electric solution" and "unsolvable issues". Again, how often do most people drive that far. Once a year on a holiday? For typical weekend long range driving the range is enough.
Btw: 4630km in 55 hours = 88 km/h average:
https://arstechnica.com/cars/2016/09...-a-new-record/