This is definately a sore subject, because we mention two sources that can be or are the bane of ones life at an airport. In this case it is the Reps of various companies, and the Airport itself, in particular on the dreaded Monday flights, etc.
If I fly by package deal, through a tour operator, then I expect them to ensure that everything is organised for my arrival and my departure, moreso, as that invariably I am not happy because I am going home. This is their job, this is their forte. Ironically, we would certainly moan at them if this did not happen.
However, if I booked a holiday independantly, I would not be expecting help at airports, therefore, I do not see why the Reps of other Tour Company's should be concerned as to what I am doing, and as to how I conduct myself in ensuring that my party get through to the aircraft in the normal manner.
If the likes of Corfu Airport want to see all departing passengers coming through in any orderly fashion, then they should supply the Staff to do this, and not rely on Tour Operator Reps to do it for them.
If I go independantly, I will act independantly, and will not queue in another Tour Operators queue.