Just watched the game on TV. They didn’t show the full replay on TV. The replay stopped just before his knee touched the ground before he handed it off. I still say definitely down. Not that it matters now, but it was a missed call.
This.
His knee definitely was down as he was handing the ball off. The announcers were asking about it, and the replay stopped before his knee went down, so they concluded incorrectly that he wasn’t down. I went back and watched the play as it happened again, and he was down. It should have been reviewed and reversed.