I am pretty sure they have been working 12+ hour days since before ARR with very little to no vacations, so I have NO problems letting them rest up a bit, and come back more refreshed and energized.

I work 8 hour days personally, and I even am exhausted after just that and take naps. I cannot imagine how I would feel like probably working 7 days a week, even during holidays hehe. I would die xD
Better with a 1 month delay, than a bugridden experience as well.

And if people complain about 1 month delay without content, go play WoW and WOD (king of MMORPG), where you get Selfies, Twitter and nothing more for a whole year