As has been pointed out in the article, this would result in several of the cars tested no longer functioning. And is not even allowed in all the cars small print.
I’m sure it’s an issue for self-driving cars. And that sucks. For the rest of us, it’ll just disable internet-based features like on-star, which is kind of the point.
As for “not allowed”, I don’t know what that even means unless it’s a lease. Is the manufacturer going to come steal my car from me? There’s not much small print when I hand the dealer a cashiers check. Just standard title transfer paperwork and such.