You also posted this on ROF forum.
As was said there, it does exist on Amiens Cathedral so it's a feather in the cap of the developers that they model so accurately. You have a problem with it, take it up with that church, not ROF. If you are looking for a religious dispute, then this forum is not the place to be. This is a forum that discusses ROF and not religious viewpoints.
I'm just a little suspicious that this might be trolling.