My guess would be that it's because their just the publisher and not a partner, i guess logically they would throw more resources towards products they have a bigger slice of the pie. That I understand, but they did say in these forums that the addons would be coming and a new installer also if i'm not mistaken. I get the addons and patches at GG so it's no big deal to me, but i know some have inquired and haven't got answers. I'm a big believer in doing what you say your going to do, or at least explaining why things have changed.
Enjoy when you can, and endure when you must. ~Johann Wolfgang von Goethe
"Be Yourself; Everyone else is already taken" ~Oscar Wilde
*I'm in the Wargamer middle ground*
I don't buy all the wargames I want, I just buy more than I need.