Tesla never had any intention of actually opening up their superchargers to non-Tesla vehicles. It runs strictly against their goal of selling more cars. That

Tesla never had any intention of actually opening up their superchargers to non-Tesla vehicles. It runs strictly against their goal of selling more cars. That's why they're making an adapter to let their customers use the CCS networks, because otherwise the Supercharger network requirement starts to become a liability instead of an advantage.