This is purely a guess. Their release goes something like, turn the server off. Release software, liquibase goes and make changes to the db, software is patch accross all servers. All done in say 30 minutes, shouldn't take long. However there's been a massive mistake/issue with this one, and it required a restore of DB, which is very unusual. So they carry on trying to fix forward, in the backgroup, they get the second DB server going, get the massive DB from glacier. I'm guessing it's petabytes, it would take hours just to get the backups on to the cluster. The cluster is spin up, the DB is slowly imported into the (Guessing they use AWS aurora), they then have to run a bunch of test against the new DB, all the software / config is then migrate to use the new DB host, this maybe a massive change. Game is tested again, and various user accounts are checked to see if glimmer etc are ok. Don't want to f**k up twice.