Well, I don’t think I should increase the limit. It simply enables its construction and operation.
My idea is simply to avoid turtle and discourage entrenchment. Many civilizations don’t even need to control the map to be competitive. Linking economic aspects to map control is, in my opinion, ideal in a real-time strategy game.
Yes, trade routes become less relevant as the departure date approaches. I would like to see the integration of technologies like the telegraph, which improves the success rate of shipments and their arrival speed.