the qatari player who broke koné’s leg did that completely accidentally but nobody would argue that shouldn’t have been a red. even if it doesn’t result in serious injury playing recklessly in a way that could result in serious injury is supposed to be a red card.
Don't really get the obsession with slow motion in this case. You could show the ref this and it still looks nasty. The context of the action is what matters here not the speed of the video