Perhaps, but a lot of discussions around EVs seems to focus on the state of technology today, while discussing the impact at some point in the future. The implication that cars and the grid won't improve is disingenuous.
It is just experience. Look at Germany. They are building ONE power line from north to south called SuedLink, they started planning in 2013 and operation should start in 2026. Maybe.
So it is completely correct to take current state of the network and consider it virtually unchanged for decades to come.
So it is completely correct to take current state of the network and consider it virtually unchanged for decades to come.