Shows you how fast Fuller is. He outran that ball and had to hold up enough for the corner to catch up and hit him in the head to breakup the TD.
This is something the great QBs do. If you put it up there, your WR is the one that benefits, the DB can't touch them. Manning used to abuse this more than most, just deep passes and getting Pass INTs for his team. To be fair you have to be accurate too, if only their DB knew that Fuller drops those kind of passes...
they've been doing that for him every XP. He was hitting a left-to-right draw consistently... looks like he hooked this one.