I agree with you, it probably should have been playable in the ranked playlists from Day One. I would say that saying "you're paying $10 for this" is a bit of a stretch though. There's lots of other stuff... I mean, it's a map pack. I guess I sort of dislike the stance you are taking. Don't get me wrong, I agree with you, but I don't think that this new gametype is a huge selling point for the Crimson map pack. I would, however, say that people need to realize that this game mode is playable now.
Also, at least with me, you get farther in your arguments by not attacking people. I think that the reason some people instantly assume you are just complaining about the game is because of the way you bring about the arguments. Just giving you a heads up. It seems like civilized, calm discussions get more attention than lots of rage and insults. I'm just observing