I'd agree if the choice were call the director or simply put it on the internet, but if those were the options, I'd do neither.
As it is, I understand, I think, why you chose to do both and you have done an excellent job of ensuring that nobody can read your story as a criticism of the ethics of your opps.
However, when the opps clearly did nothing wrong...when there is nothing that suggests even the possibility of UI...then I think it was wrong to call the director. One calls a director to make a ruling when one thinks that something untoward has happened, whether intentionally or otherwise. We shouldn't be calling the director merely because we don't like the bidding decision made by an opp, when there was zero reason to suspect UI.
I'd love to have heard the explanation given to the director.
'The opps acted with perfect ethics, in perfect tempo, got a terrible result, and we think that S made an unusual decision: please apply the Laws to this situation'
If I were the director, I'd look bemused. If I were an opp, I'd be pissed. We got a bad board from one of us making a decision that worked out poorly. All of that I could live with, and I'd expect that N and S would, after the session, talk about the hand to see if this was simply a system fix...a hand that fell in the seams of their methods (in which case maybe they think about a tweak to the system)...or whether in hindsight one or both of them ought to have done something different. To have a director call seems like adding insult to injury.
As for the decision to pass, in my view any attempt to impose upon players a requirement that they display consistency in their actions, or that they conform to the expectations of others in their system design, is foolish beyond words.
Bridge is not played by robots, at least not in the real world, and attempts to make people play robotically ruin the game.
Finally, what does one do as an ethical S if S perceives that his partner took a little longer than usual to pass. You noted that N took 10-15 seconds. What if N usually takes 7-12 seconds and S thinks he took 15? S perceives a break in tempo, which you didn't notice because you aren't familiar with N's habits. S passes because he feels constrained by this UI, and he gets a bad result, which causes him little, if any, concern because that's how we play the game. Then you call the director on him.
Bad enough in the actual scenario, but what if defending undoubled got a good result? You still call the director, even tho you have zero suspicion of improper conduct of any kind, and what is the director to do?
There is more to this than I have covered so far, but I have gone on too long, as is often the case
