Why? Referees, or "Sirs" as BM likes to call "The Men In Black" as I prefer to call them, don't keep "minor infringement" stats in a real game so why should it be any different here? A "foul" doesn't necessarily mean "foul" or "dirty" play but enough to award a free kick, kick to touch opportunity or scrum to the opposition.
As we don't have a "yellow" or "red" card system in this game as yet, be happy your team is getting away with it.