Actually control is a pretty well established idea in the NFL, one hand and your body or two hands on the ball with its movements being the result of your actions and you never lose contact. Jennings got two hands on the ball and never had less than that, yeah Tate managed to move the ball in space but it never moved from Jennings’ hands, and it never moved in his hands, the parts he held onto at the start he still held onto (skidding and pivoting tend to be things they call as losing control).
I’ve argued in mu head enough with calls as to when a wobble is just a wobble or when sliding and skidding are okay and when they’re too much to know there’s room for disagreement. Of all the controversial plays, you’re right, control is fairly well established, unlike pass interference, for instance, where there doesn’t seem to be a standard at all. Then again, I might have thought the difference between falling down and getting up was pretty well established, too.