Well, when I played left field, in high school, I caught a few balls in foul ground and that ball, if there really is a ball in that "catch", is only foul by a few feet. But to catch a ball in foul ground it would have to hit pretty high to have time to get there because the left fielder normally positions in fair ground a few yards.
And as you, or someone, pointed out, from looking at batter it looks like the ball was hit on a low trajectory. A golf ball will sometimes start out on a low trajectory and then curve up to be pretty high, but I don't remember seeing a baseball do that.
And the left fielder is the closest defender to where that ball was supposedly hit and, in the video, the left fielder is pretty close when the ball-girl "makes the catch".
If a high fly ball is hit to that location, and if anyone is going to catch it, it's the left fielder.
Great explanation. I was given a link to an article that proves it was a fake, created for a commercial. But had I not read the article, your explanation would have kept me from even posting it.
A most excellent explanation for the facts.
Thanks. you nailed it.