no need to stay polite - waste of energy while risking not getting the point across.
missing the sweet spot and shanks are not the same, 1 is still on the strings, 1 is on the frame... string bed is a plane facing the same direction.. the frame, well, not so much.
why they miss long DO matter, in the sense that how much of a miss is expected. do you expect a good player to miss a target by 5ft 11 inches so you ask him to aim 6ft short of the baseline? that's a significant loss of penetration..... or do you expect him to miss by only 2ft 11 inches and therefore aiming 3ft inside is safe and has more penetration.