I did not try the game yet, my feedback is based on your above presentation and screenshots
3. Sure, there are a lot of buttons and tabs during the game, this can invade players with too much information at once. There is a difference between complexity and deepth.
4. Sure, I am a developer myself and it so happens that I develop/enjoy the type of sim/tactical/strategy games and I like to see how devs create these types of games naturally without me interfering in their creation.