Well... I have observed this. Some people will line up their eye and the end of their finger with what they mean to point at. But if you were to extend their finger they would be way off. Some people are just fucking stupid.
I remember when my younger brother would play duck hunt with the nes gun. He would line up the end of the gun with his eye and the duck. But the gun would be pointing in the wrong direction. (He was young at the time) It took me forever to explain to him how to look down the barrel of the gun to shoot it. He seems to have learn since then, but some people maybe just never learned how to do this.
I would assume lockon would have learned. But hes almost dead at this point so lets forgive him.
That or there were two different artiest that drew this and they didn't sink up their drawings.