It was a catch until the CB recovered and put a hand in between Hopkins' to jarr the ball loose. Hopkins probably expected the ball a bit closer to him and so he didn't position his body well enough to shield the defender from the ball.It would've been a helluva catch. The ball could've been placed better, no doubt. I would say that both DHOP and Case wish they could run that play again. Growing pains. Better than seeing the death throes from Schaub.
Case made the quick read; as he saw the CB played the outside fade, he threw the ball to the inside. If Hopkins was on the same page, he would have fly to the ball instead of jumping up and because of that, he had to extend his arms to catch the ball. The CB also had a hand on Hopkins' waist to prevent him from lunging toward the ball.