This game was very easy to understand right off the bat and for a game jam submission especially, that is super important. It did not take me long to understand the game, the UI, and how it works. With that being said, the game takes quite a long time for anything to really happen and I never felt any danger in having either side get too powerful. If anything, I thought both sides were going down quite a bit in power and I never had to worry about it.
If you were to work on it in the future, having visuals to show side A or B getting too strong and possibly even taking your resources or something could really play with the idea of how and when to help each side while maintaining proper balance.