I'm usually pretty hard on the announcers...but in their defense, I don't think that there's any way that they see F5 with the ball in real time.
From their perspective, the logical take is that it was a left early appeal.
I think if they had the MLB staff to roll it back and take a look at what occurred, I bet they grab it then...but whomever found this initially, was really dialed in because there was literally no mention of it on the broadcast.