[T]he 3-2 pitch, I had it in the zone right down the middle.
If Pitch #6 is "in the zone right down the middle", then Kulpa needs an eye examination and some additional training. Based on his Friday night performance, he has no clear idea what or where the strike zone is.
Miller's sixth pitch was a ball. If Kulpa had done his job properly and without bias, or if MLB was using some mechanism that called balls and strikes correctly, Ortiz would have walked. A run would have scored and the game would have been tied 3-3. But Kulpa, determined to show Ortiz, John Farrell, and the rest of the Red Sox that he was the supreme boss on the field, said "I'll show you" and quite possibly cost the Red Sox a win.
ESPN Stats & Information reported that Kulpa blew 31 ball-strike calls on Friday night. Only six games this season have had a worse performance behind the plate. ESPN said the strike three pitch to Ortiz was nearly half-a-foot out of the strike zone. (If so, then Brooks' zone is too large.)
John Farrell, during his on-field argument: "You ought to be ashamed of yourself."
Kulpa, afterwards: "It's just part of the game."
Sadly, that is true.
MLB believes we need the "human element", which apparently means "games decided by incompetent umpires".
MLB believes that umpires can let their personal feelings dictate how they call the game.
MLB believes that umpires have the right to alter the rules of the game depending on the situation.
MLB will defend Kulpa in this situation, or at the very least stay silent on the matter, thus condoning Kulpa's actions, just as it defends every umpiring decision, no matter how blatantly wrong.