I've watched the replay a couple of times and it looks like Hemingway pulls up. I think Robinson expected him to keep running down the sideline.
The ball was clearly over thrown but if you watch the replay it looks as if Hemingway would have been right there if he keeps running. That doesn't mean he would have caught the ball, but at least it would not have been intercepted.
With that said I don't have a problem with Robinson taking snaps for the last drive. It was pretty clear that Tate didn't have it yesterday.