@Trolin Sorry mate but if I got a solo O province, or a Province where the Chance to get attacked is under 10%, then I will rather save the population.
I know that you build a lot of Churches, I do not say that you are a bad player, nor that your ways are wrong, but mine also aren't. Everyone has his way of playing, also it only makes sense to build a church if you got multiple villages within a Province, and out of multiple villages, one will always have at least one with 5K Population available, considering the short build time for the lvl 1 church, it is always possible to build it at any time, also to get rid of it.