its is a hard one to judge, i was the dispatcher on the Manchester flight that linked in the article. its not an easy thing just to move 280 pax onto other flights especially at man when we were the last flight out to Canada and we were already 2 hours late when the aircraft went tech. to move people on the following day was difficult as we then had the engineers saying it should be ready in a few hours, so your stuck in catch 22, do you move some or don't you. it was just unfortunate about the crewing issues later that day which put it back to Sunday.