To your point, Kemp absolutely allows the defender to flatten out the corner route and we know it was supposed to be a corner route because Rhule said it was. I'm not sure I appreciate the wisdom of running a short area corner route to a 5'9 receiver in the first place, but I also thought Sims last pic was the result of Kemp flattening that corner route out as well. Rhule's description of this play in the post game presser painted a picture similar to the pic in the Minnesota game, that's not what I see at all. Kemp didn't take this to the corner and the CB didn't have to come off the #1 receiver to make the play, it was thrown right to him as he tracked the #1 receiver inside.
I've watched this numerous times and I have a hard time believing he's not trying to get the ball to Coleman and he quits on the route because he thinks he's a decoy for the corner. If he's trying to squeeze this ball into Kemp on the 7 he flattened out, all I can say is irrational confidence.
I'd add, I'm not sure why you would have Coleman delaying his break. I would think you'd want Coleman clearing that defender so that pass could go behind him.