FWIW.....many people are *transient*....meaning they move from place to place. And I'm sure that the *last* thing they think about is to change their info in the database.
Also, I don't see people complying with the mandate, any more than they do with registering/tagging their dogs, in the first place.
And that is exactly why the vet who chips the dog includes his clinic number.
No matter where the owner roams, the vet remains and if he retires, another vet gets the info.
I have my dogs’ chips registered with the national database and the AKC.
No matter what, they are shown to be owned by me and at least one of the contact numbers I provided is bound to still be alive and reachable.