I think maybe people just want to understand what actually happened on the play. It appears that the play has “ broken down “ and guys are trying to get open for their QB. Yeldon stops , then starts running across the field in while looking at the QB. He then stops suddenly, but Allen has already let the pass go to a spot where it looks like Yeldon would have been if he continues running. You don’t “ sit down “ on what essentially is a scramble drill. Remember the phrase “ always running, always alert “ ? Just who was Allen throwing to , then ? He owned the throw post game ( as he should) , and wasn’t going to blame anyone else. It appears that Yeldon was the likely target. I haven’t seen a more likely explanation yet. Fwiw , I think Yeldon has done a decent job so far, in spite of his ill-timed fumble.