Tesla can open service centers in all 50 states or allow other vendors to service them. Tesla doesn't want you to have the freedoms that Magnusson-Moss guarantees you.
Nice planet you're on. Not Earth, though.
They are probably talking about the other side of the coin, which is that Teslas are made like iphones. Nobody other than Tesla can repair them.
Are you sure? I watch Bjørn Nyland's channel and he goes to an independent repair shop in Norway to fix out-of-warranty Teslas. And there's quite a few of those cars in Norway by now.
The independent repair shop probably gets spare parts from other broken Teslas not directly from Tesla