Yes, the conclusion sounds reasonable, except it seems to overlook:
1. Affordability. This is improving, but even if we want to, most of us can't afford to replace our current non-electric car with an electric.
2. Charging access. This is also improving, but anyone who relies on street parking won't be able to charge their car at home.
It would be equally reasonable to say that riding in a taxi would meet 90% of drivers' needs. A taxi would get people to where they need to go most of the time. But for most people, it would be prohibitively expensive, and require extra time waiting for the taxi to show up in the first place.