The US is massive. That supercharger map shows vast regions of the US with almost no superchargers and entire long-haul highway systems with
none at all. And some of these are highways I travel on. If you actually know the highway system in the US, that supercharger network map is a joke. Maybe in another decade it will be something close to having decent coverage but that map is stark evidence of its deficiency for many people.
Sure, there are a lot of superchargers on many parts of the coast. They have always been available where I live and I have a Tesla charger in my home. But the US is a continent sized country. Pretending the inconvenient parts don’t exist doesn’t make them go away.
I am always astonished at how dismissive some people are at the practical concerns of Americans that don’t solely live in an insular coastal metro. It isn’t a good look and needlessly invites resentment.