If ever there was a monument that ought to be regarded as fake.
This is surely it.
So far as we know it is unique,
although there are many holed stones.
The others are usually uprights, stand alone, and have much smaller holes.
But if it is authentic, and we have never come across
any suggestion that it is not,
then it is an indication that the ancients
ritualised, and that they thought symbolically.
This should not come as a surprise.