Not entirely convinced, but it is an opinion and I am not about to fall out, as it were, with a fellow Blue.
My interpretation was that he was impeded, and running at speed, almost any contact will down a player. I won't use the usual lines that others do it and get away with it as I do not believe two wrongs should ever make a right.
My stance, is that not only was it a penalty, but a ban was completely wrong. See previous posts regarding the Allan incident.
My main gripe was that we were awarded a penalty, which was the correct decision, then we lost a player for not cheating. Now that IS wrong.
You may recall, that at that time Oumar was probably our only player who was scoring. Without his goals we would have been up a certain creek without a certain implement. He may not have been a 'loss' in the great scheme of things, but his goals would have been.