However, what I am saying is that if a mass brawl was started and it went 100% unpunished (in London i'm certain), the referee would probably be marked down on a critical point as it would seem to have been condoned.
If you separate the teams, take your time to manage the players and yourself, and speak to the captains about it, then you're managing it and trying to prevent further goings-on- I certainly don't think anyone would accuse you of condoning it.
You just saw a fight, you don't know who started it, two players involved. You could send them both off, you could bin them both, and you could admonish them, tell them not to do it again and spoil the rugby for the other 28 players, and get on with it. The choice comes down to various factors, but to say "the option that does not involve a penalty is out of the question", is too harsh given all the unknowns.
May I ask you all if a player or players became injured is it still acceptable to start with a scrum with no punishment, just because you didn't see who hit them?...I can't see how we as referees would bin two players for having a good scrap (not handbags) but can give nothing to two teams fighting.
Robert, we're now in the land of hypotheticals and What-ifs. Injuries will no doubt factor into our decision, as will the trend of the match, relationships with teams up to that point, etc.
What Judah had in front of him was dealt with effectively for that scenario. On a different day, in a different match, with different things at stake, the consequences may have been different. As long as the referee can justify his actions for what he sees (or doesn't see) and how he manages the game, then that's the most you can ask. I've binned players after repeated warnings to captains, and I've brought the captains over after an isolated incident 65mins in to remind them of discipline, and had positive results from both (I've also had negative results).
As one NorCal referee told me a few years ago: Good judgement comes from experience....experience comes from bad judgement.