Something that really pissed me off is that the palisade gates don't close automatically to foreigners, and they appear very early even if the map is large size. If there is no way to defend the land from earlier attack it's counter-intuitive, how is we supposed to grow without a territorial base? To found new civic centers, we'll need to send people from an earlier place so if there's no way to defend the land from early attacks growth is hindered... If the city of Rome was founded without walls when it was still a village or town, the Roman Empire would never born because it would be killed during its baby phase.