Pretty much what Zill said. While I'm sure a couple of the teams want to play their maps 24/7, I'd rather not end up being accused of splitting the community by providing a reason for the teamed vets to play in private, passworded servers or stacked teams all week. This way, you still have a couple days to warm up, and the non-participating members of the community don't want to brain me with a mallet for preoccupying all their friends.
Patience. You'll get the maps soon.