Here is what intramural refs lack the most, confidence to call fouls. Most intramural games become hack-fest because officials don't want to and don't know how to face the whining and complaining of their "peers".
We all know that you can't be cool and be a ref.
But intramural refs try to be liked by everyone and it translates into passing on calls.
I know because I got my start and still ref and play intramurals.