Apple doesn't let users download major iOS updates over cellular data, and that's been their official policy for the past decade.
Why is it a problem if Tesla does the same thing?
Why is it a problem if Tesla does the same thing?
Because Tesla isn't selling a smartphone that users in places where parking and living space aren't immediately adjacent so as to share a wifi router can reliably be expected to carry into their home, where they can connect to their in-home network, but a car which is a very different device.
Also, map data updates are necessary to maintain function, unlike major iOS updates, which provide new function.