This difference in attitude that is mentioned here could be down to the different cultural background of the two codes. The referee in Union is almost seen as sacrosanct...a headmaster type figure. England captain Chris Robshaw had the audacity to question the ref who then responded to the pupil with a..."Christopher".
It's not just commentators who accept their decisions and move on with the game, it's players, coaches etc...very very rarely do you hear a coach or player bemoan the ref after the game (or even during it..."yes sir, no sir, three bags full sir". The ref in Union is given an almost untouchable status that few other sports afford. All of this is likely connected to the public school aspect of Union with the pupils obedience to their teacher/headmaster part of the etiquette. State school sports (where ruffians are not so obedient to authority) tend to speak out more and voice their displeasure at any perceived injustice. Only last week I heard an ubiquitous football chant being used by a RL crowd..."the referees a wa#ker". RU is quite repressed at times.
could be worse they could have called him a banker