If you're in a small town with a level 2 charger at a city park, you just charge enough to get back to civilization. Then hit the fast charger when you're back to the main highway.
Yeah, it takes a little planning to hit charging stops - but it's not actually much planning. And the built-in navigation takes care of most of it for you anyway. I was genuinely surprised on my first trip (again, through not-EV-friendly territory) how much of a non-issue it was in practice, and how much I didn't feel like I was waiting on chargers (even relatively slow "fast chargers"). I just took my time using the restroom, grabbed a fresh drink, checked my notifications on my phone, and it was time to head out again.