Not on that play. It was hardly a block in the back to begin with. The defender almost gives his back to the blocker. Maybe guys should just run backwards and when you touch them it’s a block in the back. The Vikings player completely over runs the play. Just lol at rewarding a guy for what he did. Watch the replay. Under your logic a guy should literally just run around ackwards then as soon as they get touched fall down and viola, blocking in the back. Defenders should just start leaving their feet and flailing backwards into a crowd of people and when someone touches their back they get a blocking in the back penalty . The defender made terrible play and a result basically almost runs by the blocker and gives him his back. There’s no way a ref should ever flag that. You’re completely defecating on the spirit of the rule by arguing that’s a block in the back. The defender almost basically throws his back at the blocker.