I see some integration with e-mailing services. How about an SMS service? At least we need it to push alerts.
At most it could be used as a cheezy “feel good” 2FA while we’re on-boarding them. There’s a small window while training. your noob no-coiner users where they’ve got a user name and password only. They’re vulnerable for a minute or two before their wallet is set up. After that signing becomes the best 1FA.