Watched the 22 game tape (best investment ever! haha) myself and I have to agree with JamaicaJet.
On the play Sanchez looks off the safety to the right. He starts backpedaling to the right. Sanchez then looks to the left where Gates is running and let's him break off of his route. He then releases the ball in ANTICIPATION of where Gates will be. Gates rounds off his route allow the defender to be where his route SHOULD HAVE been.
Poor analysis by the writer.