So the author probably could have migrated if he hadn't used a Google Fi phone number for 2FA. Some banks and businesses (such as Uber) will detect a Google Fi or Google Voice number and not let you use them. Other businesses don't do the detection, but the 2FA texts will never arrive. Like the author, I've got some accounts that I was able to set up for 2FA using a Google account, but 2FA no longer works on them.