SSO is handy for security until your SSO provider breaks or (as in this case) bans you. Imagine if one day Mr. Musk decided to kick everyone off of Twitter who

SSO is handy for security until your SSO provider breaks or (as in this case) bans you. Imagine if one day Mr. Musk decided to kick everyone off of Twitter who didn't align with his politics or philosophy. Think of the millions of accounts that people suddenly got locked out of because they used "Sign in with Twitter." These situations used to be so theoretical that they were dismissed as hyperbole. But it's a lot less outlandish a thought these days.