Because the servers always crash consistently, apparently related to server load (almost always peak time. not usually a Monday, but it’s a huge holiday weekend.), nobody knows the cause and it takes up to 12 hours to restart (presumably until the next morning when they auto reboot, unconfirmed).
Here is the last official-seeming reponse I’ve seen. Please correct me if I’m wrong. Would love a legitimate update on this MASSIVE issue.
Also here is one of the many other examples of reports on this issue, this one from 27 days ago.