The problem I have with this whole debate is the difficulty some seem to have in accepting that it's not just a question of a correct penalty or a dive.
Between those is a huge grey area of tackles that may or may not be fair and collisions between players, resulting in the attacking player going down. That is not diving. It happens, and my reading of the incident yesterday was that it fell in this category.
On the other hand, I dislike intensely the culture of cheating diving that does exist. But who is to blame for that? The players themselves? Encouraged by managers? How often do you hear comments such as "he was entitled to go down - up to the ref to make the decision". And commentators who regularly suggest that players should go down - "he was too honest staying on his feet" "if he goes down the ref has to make a decision".
And, on The pen yesterday, I think those who suggest it was given against the keeper may be right - the ref played a moment's advantage until J Rod didn't score. Be interesting if he makes an comment.
But I do not accept that there was a deliberate act of cheating.