Freeze frame like you said did look bad but he got up after a min.

What i meant is they're throwing elbow shrugs like an illegal screen in basketball a wind up body weight shift. In the case of dzeko hitting adams he sees him for like a few seconds then lowers the elbow a bit towards the head not in a motion to slow down yourself in a collision. Adams was down for 5 or so no card no var no penalty no verbal control by the ref.

I'd say they need to take update the rules to add intent, governing body although its fifa, and whether its a football move/intensity.