No, the point is the place the gun is pointed to needs to first go black, then white. If it is a static reflection of a light that area will never be filled in

No, the point is the place the gun is pointed to needs to first go black, then white. If it is a static reflection of a light that area will never be filled in with black. They do mention in the article that early versions of the game may not have had this protection, so that could be the case with OP.