The NFL got rid of the excessive celebration penalty a while ago. Teams have been doing that “photo shoot” crap all year. I hate it but it’s legal. As long as you don’t taunt an opposing player they let that stuff go now.
I did figure that out as that display absolutely would have drawn the call. I guess they have gotten rid of ‘intentional downing of the ball by the QB’, too. Or THAT would have been called several times on both teams.