When has this ever been true? The supercharger network was always one of the key advantages of a Tesla over any other EV: you could actually have a reliable fast charging network, as opposed to the patchwork of other questionable charging networks. You actually could, reliably, expect a road trip to not have any issues.
I truly abhor strawman comments such as this. They offer nothing other than a false sense of superiority. They are like buzzing mosquitos on a hike: annoying, distracting, and useless.
This does not even make sense, even beyond the weird strawman. If the "Tesla fans" think the superchargers are their most competitive advantage... Why would they want other automakers to adopt it?
Tesla fans after 2023: The Supercharger is our most important competitive advantage! Any automaker not adapting our standard will die!