Because the whole point of the strike zone is that that's the area where, if a ball is thrown there, a professional hitter ought to be able to make contact with it. If a ball is thrown too far outside the strike zone, sure, you can occasionally still make contact if you're disciplined, have a good idea what you're swinging at and have a quick bat, but has that described Ross at any point recently?
If he swings at that, odds are what happens is that he misses, and we're yelling at him for chasing one that was obviously out of the zone to end the game.