Well you always see people complaining if they get unlucky. If there are many managers that got significantly less rebounds than their opponent, than there should also be a lot that got significantly more than their opponent. But we only see people complaining that they feel they should have had more rebounds......Looking at the matches in my own competition I haven't noticed anything really weird, so I think it's just that some people don't like being on the left-end of the normal distribution of random.
I don't get what you mean by
That means that if they hadn't changd the message the rebounds difference would be even bigger
Crunchy! If you eat fast enough