FWIW the update was actually genuinely useful to me.
My car was delivered with only 1 key card (but 2 programmed in).
A few weeks later they sent a ranger out to give me a new card from my due bill- which he had to program in with his laptop connected to the car... and then was unable to delete the one I never got from the system.
He said he should have been able to, and would file a report, and someone would get back to me.
Nobody did of course.
But now thanks to that update I was able to delete the extra card I never got from the car by myself.
But yeah, adding (once available) after "buy from tesla" would've been a good idea given how well they usually do meeting deadlines for delivering anything.