I would not have said anything directly to the passengers but definately would have said something to the CSD about very disruptive passengers.

I'm someone who generally pays for WT+ then Uaa's to CW and am about to lose my Silver status but that doesn't mean that my comfort is considered to be less than someone who has paid more £'s than I have. In some way or another, CW or F pax have paid in some way for (generally) peace & quiet and that should not be abused by others who have either paid more or are from another cabin. We are all in that cabin for the same reason and that should be respected by everyone who is travelling in those cabins.