Hiya Villain, I'm afraid the "complaints to the management" wouldn't work for me. I couldn't be bothered with the ensuing discussions arguments and opinions.
Immediately let me say - I'm sure it would work for you,
You sound convinced your diplomatic method WOULD work and I admire you for that.
For my part, I'm much the same way with a poor standard meal in a cafe /restaurant ....I can't be bothered complaining , along with the ensuing opinions etc. ,it's all a drain on my energy and emotional resources.
I put the occasion down to a shit experience - I pay for the meal and never go back , and will never give a good recommendation.
Before you start typing - I know my method is the lily-livered way out, and probably doesn't serve my fellow men very well, because the establishment will keep serving the same shite to others, because no one has complained, but, it works for me, as I like to avoid such confrontation, primarily because I have a completely (undesirable) ability to escalate such situations in a very short space of time.
I need to leave such situations to you diplomats!!!
Not to say I wouldn't consider I wouldn't go back to the establishment if I heard favourable reports from people I trust, that the establishment had changed it's ways, an undergone a re-organisation, which, might more suit my taste.
However I realise the world isn't going to change for Charley, or me, but things might change if Organisers take notice of reasonable complaints from people like yourself.
I feel myself going round in circles here ...

Cheers Betsy