Thanks for your feedback!
We tried to stick to not being able to control units, and you are kind of right about the strategy and iron thing. Currently there is no way to increase the energy generation.
That being said, I think there is potential strategysing with the given system. We decided to make soldiers roam around to try and balance the ease of making units. You can make 5 soldiers, but they might wander off the map if you are not lucky.
The emergent strategy we founds is especially useful in maps where you are far apart from the enemy. A good strategy is to build buildings close to the enemy, so if you manage to not be destroyed and spawn some soldiers there you have a real chance of taking one of their buildings down.
We tried to come up with new and weird mechanics for our RTS, and I agree that they are not polished or seem really weird, but they did cause a lot of funny misfortune for the part of the players so we think it was all worth it :)