User blog comment:Bermuda/Major Test Release Notes - January 10, 2012/@comment-3279891-20120111214931/@comment-2194058-20120111224653

Probably busy taking care of hackers and bugs in the game. That, or too many lazy developers nowadays. It could also mean they wanted a big update and have been working for quite a long time to make a perfect-ish update (considering some of these tests were taken off).