I don't really count "Our new DLC requires version 1.3" as a statement about the status of the patch. Even if it did, that is still 3 weeks of nothing.
There are other dev teams on other games that release weekly updates on their development of the game. There are other dev teams who release near daily patches when working on a beta patch with *gasp* detailed patch notes even though they are non-native English speakers.
It must be a Western European thing because Creative Assembly and Giants act exactly the same when communicating with their communities. Silent running until its time to get people to buy some new DLC and then a token huge patch right before the DLC in hopes people will be pacified enough with the patch to buy the DLC.