The gain in capacity has also been noticable. It's a few percent per year, but over a decade that adds up.

The Tesla Model S was introduced with 60 and 85 kWh batteries ~10 years ago. Today you can buy vehicles in the same class with 120 kWh, and dozens of models with 85+ kWh: https://ev-database.org/cheatsheet/useable-battery-capacity-...

Of course affordability remains a problem, but the battery capacity per vehicle has drastically improved, even without world shattering breakthroughs in chemistry.