Bit misleading since it only shows properties still standing, seemingly. So the older periods look extremely empty.
Yes, great point. What was torn down, burned, destroyed, etc. along the way isn't here. This is the surviving city, not the city as it was.
This is one of those 'hey, I can vibe code this in a weekend' projects. Just look at how the AI decided to the entire map in dark mode, making it nearly impossible to tell the ocean and the land apart.