I think people are missing the big story here. This is Tesla winning the charging network battle (it wasn't close before this). Any EV car (which will eventually be all cars) will immediately be available for Tesla's supercharger network. This gives Tesla a massive revenue stream and scale to grow that network even bigger. Anyone who wants their superchargers has to also support all Teslas.
(Of course, to the extent they get funding from the government or other manufacturers to offset the capex required for building out more stations and chargers, that's great for Tesla & anyone.)