As far crew eating when there is no service to passengers? Hardly wrong, crew don't get meal breaks and rarely have a chance to eat anything at all. If they have a few minutes in which to consume their only meal of the day then so be it. If there was an aircraft change and a delay it's highly likely that catering was not loaded (it's often cut to try and make up time and not cause further delays) and that is the real reason why a service was not provided.
True but stupid to actually be seen eating in front of the passengers when you have just told them that the cupboard is bare.
Think people, think
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