[mensetmanusman]

10^-8 compared to -16?

[pclmulqdq]

I don't think it's that low. The number of coincidences will rise exponentially with the number of churches. You also have to account for the fact that there are something like 1000 prominent Catholic saints, and 10's of usable map projections, etc.

[lambdaone]

See https://en.wikipedia.org/wiki/Alignments_of_random_points for a thorough treatment of this topic, with citations to the published literature.