I suspect that Moss was told(VAR) that Armstrong was already going down and when he looked at the video monitor that is what he saw. That is all that he observed. What he missed was the clear foul by Walker and that without that foul Armstrong may have recovered and got a shot away. We were also in control of the ball when the whistle went and yet at the restart the ball was given to MC.
Full marks to RH for his choice of words in the post match interview.

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