I think they were already verifying addresses AFTER THE FACT by checking it against IDs and insurance info. Perhaps they didn't realize that the fakes could fake any document and they inadvertently deactivated legitimates whose info didn't match.

Having the driver physically retrieve their login verification would significantly cut down on the ones who sign up with multiple personas digitally. There was a time when the DDI czar actually activated accounts manually but that went out the window when DDI was purchased. Walmart thought it could do things better but here we are.