I saw the video, the Denver planyer (I believe it was a defensive back) simply said that what their game plan was.  Which was to force Cam to throw the ball and Cam couldn't deliver.  It wasn't really a put down, simply a statement.  Now, I can see why Cam wasn't happy to hear it and I can understand why he wanted to get away from it.  I think that was better than him saying something that he would have regretted later.  he was upset and frustrated with the loss.  Seems perfectly understandable to me and a response you would expect from a young player.