In regards to minor operational matters like seat issues, menu problems, luggage fees, overhead bin issues, if the crew give an instruction whether you like it or not, and whether one is more right vs the other, for the love of god just follow what they say.
I had an issue the other month, passengers kicked out of Row 1, yes, ground crew stuffed up as per usual, no surprises there, passengers upset, however my crew gave options, yet they didn’t listen to a single word we said. They just wanted to negotiate. Yes, we screwed them over, but it was now 15 minutes post departure. I told the crew to give them the stay or go ticket. Again wanted to argue. I asked the AFP to remove them for failing to take instructions from my crew. Amazed it didn’t make the news.