Yes, they rolled back the algorithm and then locked the codebase afterwards.

We already know Twitter was reporting outages earlier in the day before they announced they had locked the codebase.

This is exactly what happens when you roll back an update.

Also, somebody cut a fiber line in Florida the same day. Kek.

https://nbc-2.com/features/tech/2022/04/25/comcast-xfinity-internet-outage-hits-customers-across-florida/

Yes, they rolled back the algorithm and then locked the codebase afterwards.

We already know Twitter was reporting outages earlier in the day before they announced they had locked the codebase.

This is exactly what happens when you roll back an update.