I don't currently have authenticator codes, but they can be easily added. Would you like to try out that feature?

It's different for two reasons: - As @detaro mentioned, it's a fully managed solution where you don't have to set it up, or more importantly, maintain it - it's all done for you. - Twilio numbers do not receive SMS messages from short code numbers, which are usually the ones sending 2FA messages.

why would it be "different from that" except for not having to set it up yourself?

If you think in terms of how much your time is worth: - How much of would it cost you to forward a 2FA message to a team mate? - Maybe two messages, if the first one expired by the time they saw it?

There's the ancillary cost of the frustration if something goes wrong, as well as dropping whatever you were doing to do this menial task.

This has been fully automated and managed with SMS to Slack.