Completely agree that it needs to be reviewable. Right now hitters have plenty of incentive to lean into inside pitches. If the ball does make contact with the batters elbow the odds it gets called correctly are unfortunately not very high. In that case I am shocked the home plate ump went from ready to call a strike to calling it a HBP. Wouldn’t you take a second to criticality think through the fact a batter was just by a pitch you saw as in the strike zone. Three thoughts came to mind: (1) Ban the protective armor, then Conforto doesn't stick his elbow out without the potential of suffering injury. That would eliminate some of those situations, though with a chance to win the game, it might be worth doing. (2) Don't know if it were possible to do, but that would've been a good time for the umpire crew to confer and have someone ask the question of the home plate umpire: "Was that a strike you were calling? If so, then the HBP should be overruled by that." (3) It would seem to be feasible to make those situations reviewable and somewhat objective with the technology we have like in soccer and tennis to create lines. Determine planes at the edge of the plate; if body parts enter that zone over the plate and are struck by the pitch, then it's not a HBP.