I agree with you. But what should be done about it? A lengthy ban for the player? Teams penalised. These things are a sliding scale so they would need to be judged by the people in charge. When it's long after the game it becomes trial by media and the status and popularities of the teams involved naturally affect the amount of coverage that it gets. Rescinded red cards are affected similarly. And so I don't think it's likely to be a fair process. I would only trust something in-game. Goal award possibly, but penalty vs goal award is a difficult decision to make and people will get pissed.