Ye i know that but the game will never be 100% balanced. The only good way to know what needs balancing is through the community. What I am trying to say is something like this. They work on 2 Demigods, try to balance it as much as they can before the release and then work on two more almost balanced Demigod will take more time then releasing 4 Demigods half imbalance and half balanced.
It takes to much time to wonder all the details and compare to other Demigods spells to see how you can have it perfectly balance. While if you release 4 Demigods they might not be all perfectly balance but that is what the community is for, you easily get 10 of the same threads in 1day stating that Apollo is imba because this this and this. That way you'll easily know what has to be fixed then wonder for weeks what is not right and what should be done and release them after all that thinking. That is what patches are for. The ones that will be playing this game for the coming the years and experience bugs and imbalance issue is the community.
I know Stardock is having a hard time with the connectivity issue. When that is solved where do we go from there? The two promised Demigod, think this more as a heads up then a demand.