ALL QB's point the football back when they enter that awkward transition to throw. The difference I SEE in Kaep's is his left arm his stretched out so wide, he's like spreading out his arms and needs to tighten up, or close up his release a bit.
his left arm is almost FULLY extended
While other QB's, like Rodgers, in fact most QB's, have the opposite arm bent, pulled in so to speak.
idk if that has anything to do with how fast you throw, but, it just seems if he were to pull in his opposite arm a little quicker or not extend it as far that might help the speed of his momentum when throwing darts.