Simply being on the same team does not make all the team members, equals.
There are different responsibilities and different qualifications that, together, provide the full range required for the safe, efficient and most of the time commercial operation of the aircraft.
My crew only feeds me a candy bar and a bottle of water if anybody bothers to bring even that and they are bored enough to start on them, so I have no experience with 3course meals.
However, I don't see it as a CRM failure to voice unhappiness about the service, IF your rumour has any truth to it. Why do you?