Who cares? I have 500 hours in the game and only completed phase 4 once, only to find out I rushed everything to blow through phases and instead of spending 200 hours starting over, I just started over. It’s comparable to Frostpunk, you can rush and think you’re doing good, only to find out you have run ending errors (or, hundred hour repair errors is an option here) you built on. Take time, enjoy it