Well, I am glad they decided to this if they deem it necessary. Admittedly a bit dissappointed, but if it gives for a better game/stability then I'll prefer it this way.

@Havok: I disagree. it all depends on why - e.g. if server stability is bad, you definetly don't want to launch. Just think of how it hit AoC. Well, there were other issues which people pointed out in beta, no1 listened, it was launched, and *bang*, most of beta critiques became reason for people to quit.
Of course you can try something else, like WAR, where "simply" two classes were left out at launch and added later.