Hi
Not sure what the fuss is about. Ever since DOGSO was introduced referees found ways to not send off players, going away from goal, no control of the ball, covering defenders, too far from goal etc. the 4Ds not being present. those conditions still exist and all that has happened is that with a penalty award a fifth condition has been added of whether the foul was a genuine attempt to play the ball or not, a deliberate foul or not? Make it the 5thD. Most refs are around the game long enough to recognise a cynical foul some of which are listed such as pulling back, arm push, holding back, handling. Others include a cynical trip from behind, no hope challenge from the rear with the ball not close.
As regards the opening post the decision is up to the referee. If the 2nd one was not a genuine attempt to play the ball then it was a red. There is nothing new here in any referee making what might be the "best" decision in the game rather than the "correct" one trying to be consistent. Trying to explain the finer points of law here was not a runner IMO. If it is apples and oranges then two different decisions. If it's red apples and yellow apples then so be it. If I'm asked I say that IMO the player made an attempt to play the ball. If the foul is clearly an indisputable not a genuine attempt to play the ball then the referee has no choice. It must be a red. I believe that if there is doubt with a penalty awarded it will be a yellow. Move it outside the penalty area it will have to be a red.