A lot of times it's not even a called play. When the situation presents itself, AJ and Carr do the wink and nod thing and Carr zips it over there.
The only risk is that it's possible to bait if you're a good CB. One of these days someone (like Champ) is going to bait and jump it and take it to the house. That a big risk for the CB to take but if you have a safety rolled over that way anyway you could still protect the backside and let the CB take a gamble. I'd have to go back and check it but they may have already established a tendency on that play - like running it on 3rd and long. That's when it would be safer for the defense to jump the "route" because there's often an extra DB in during those situations anyway.