[SilverBirch]

There's a different way of going about this. So the author uses various projections and evaluates whether the churches are aligned. But this is backwards. The churchs were selected because they lined up. And they lined up on a mercator projection. There's simply no way that the churches could line up on different projections (subject to certain conditions).

So, let's just look at the churches as they line up on the Mercator projection. If you google the churches one by one, you start to notice a pattern. They all predate the invention of the Mercator projection. You also notice, as someone else pointed out, there's a hell of a lot of Churches called St Micheals.