I feel like I must be missing something but as far as I can tell there is not. Even Galciv2 had production overflow. The amount of micromanagment to set every planet individually every turn so that you don't waste production is driving me insane.
And if someone didn't follow what I'm talking about; Let's say you have a planet with 25 manufacturing points per turn. You place a factory costing 30. It tells you it will take 2 turns. First turn you get 25 points pushing the slider to ~80%, second turn you produce the factory and place a new factory costing 30. Again it tells you 2 turns, starting the second factory from scratch. Every other turn 20 production is just lost if you don't check every turn to lower production (=increasing science or wealth) when needed.
Am I missing something?