Why is that so hard? The shot is low and the arm is high, or the shot is high and the arm is low, but a deflection means it hits the arm. It's just another decision to make, whether about intent, or the difference between a robust or a careless tackle.Great so now refs have to take into account not only where the players arm was but where the shot was aimed? Everyone who complains about the handball law being too complex usually ends up arguing it should be even more complex to get the outcome they want.