And the same tradeoffs would still apply, you'd still probably want to time your stops to charge from 10-20% to 70-80% when on a long trip to minimise total travel time and slow charge to 100 before you leave and after you arrive.

It would just be even faster than today. Which is why I'm suspicious of any announcement that talks about the unrealistic 0-100% use case. If that is the metric they are chasing they're probably not going to help the average road tripper much compared with more focused engineering for the real use cases.

Something as simple as multiple cables that mean cars can charge without waiting for the others to finish and their owners return, or smarter navs, or cheaper/bigger batteries, building more chargers etc. is likely to have more impact than a magic new battery chemistry, though every different aspect helps.