Point 1, 2 and 3 all apply to miners as well and yet they never delivered on their promise.
24 karma · joined June 20, 2014
It's literally in the article that that wasn't an option.
One way to have a backup is just adding all your secrets to your password manager like KeePass, KeeWeb etc which can generate TOTP codes (but kind of defeats the purpose of _two_ factor).