Updates are also not generally delivered via cellular, unless they're classified as critical. Tesla owns the entire stack. They choose when to update, it just

Updates are also not generally delivered via cellular, unless they're classified as critical. Tesla owns the entire stack. They choose when to update, it just happens to be easier and more pleasant to give people the choice. Given that you can trigger the update via the mobile app, there is clearly support for remote updates. And if you as an owner can do it, then Tesla certainly can, even if they choose not to.