The "Proper way to close a shotgun" argument is only seen and heard in the US.

As our English friends (among others) have pointed out, Mr. McIntosh is clearly wrong, as is Dez, or anyone else who doesn't allow the snap part of a snap action to complete the wedge aspect of it's locking function.

Why is it, that something that takes so little actual common sense to realize, is completely out of the grasp of so many?
Best,
Ted