Well, I think it's probably important for them to stress that from a marketing viewpoint. Pretty much everyone probably knows that the game has issues- so by pointing out that it's going to be getting updates for at least a year, they could help convince people who are still on the fence to buy the game.

Also, Brad has said that current owners of the game will be getting the first full expansion of the game for free as a thank you for sticking with it.

In similar news: Version 1.08 should be out next week and it sounds like MP will finally be enabled with it.