Originally Posted by L'Incandescent
The criterion isn't "easy;" it's average effort. It did not require greater than average effort to catch that ball.
The criterion isn't "average effort," it's "ordinary effort." A shortstop who is backtracking that far from his position and who thinks that the left fielder is going to catch the ball isn't really making an ordinary effort.
The rule also says, "When it seems apparent that a batted ball will be an Infield Fly, the umpire shall immediately declare 'Infield Fly.'" The ump didn't make that call until the ball was descending and the SS had already backed away from trying to catch it. That's undisputed by watching the video. If the fly ball was so ordinary, then the ump would have been able to make the call much more immediately.
The umpire made two poor judgements, his ordinary effort judgment and his timing of making the call. They were judgements that I think basically everybody can see were poor, regardless of which team you support. Umps make bad calls. It's fine to admit it, even if they fall your way.
I also think that basically everybody can see that the Braves put themselves in a position to lose the game through their poor defense, inability to hit with runners in scoring position, and a few questionable strategic choices.