The reason for all the yuck faces are because I added tons of new resources and unhealthiness would never be a factor otherwise. I added unhealthiness to stable because horses in a city is unhealthy. When cars first arrived they were seen as a non-poluting form of transportation compared to horse driven carriages. And harbours polute the waters plus it brings new diseases in from the sailors. In general harbours are not a healthy place, and the "industry" around harbours are even more unhealthy. It also functions as a soft border for growth (while happiness is a hard border). With the increased food per capita (4) and the increased food income, the cities could potentially escalate out of control. This way it slowly settles and buildings such as the aquaduct suddenly becomes needed/wanted (which it never was in vanilla nor RoM).