How many other cathedrals/shrines are not "on" this line? If the surrounding countryside is peppered with shrines to St. Michael, then any line you choose to dr

How many other cathedrals/shrines are not "on" this line? If the surrounding countryside is peppered with shrines to St. Michael, then any line you choose to draw would pass through/close to a number of them. That is: TFA seems to be ignoring the null hypothesis.