I know where you're coming from, but what I'm getting at is that Les wi a red card, or Les in the sin bin we're still punished incorrectly and therefore the decision would still be controversial, and Vale still have that extra goal (assuming they don't miss the pen).
Dunno what the answer is, but I don't think its sin bins and/or replays, football isn't the kind of game, imho, you can apply these things to. All we'd get is the same amount of controversy, just "different" controversy than now.