A lot of people are posting without knowing what is involved in this stuff, if you queue arena on retail you will generally vs Australian teams unless the queue goes more than around 3 minutes, at which point you will vs a team on USW, if you are playing peak time and you’re not a very high rated player you will not be overly affected by this.
Higher rated players and people who queue in abnormal hours however will now be able to actually play the game.
Please don’t listen to the whining blizzard, let this sit and they will calm down and play.