I think unless any of us were sitting in the dressing room in Galway it is impossible to know exactly what happened. Even with good information, it will be second hand and any nuances will be left out of it. Cunningham has been involved with a shed load of teams, and only one team has come out with issues against him. It was also a team that he had improved, bought close to winning something and then fallen just short. History tells us that this is the type of team who then go on to blame the manager (Mayo with Holmes and Connolly and Waterford with Justin McCarthy). If you fall just short of something it is easier to blame someone else as you can always point to the bus that was late or the wrong substitution or something that led to those inches being lost. It is not so easy to say maybe you are just that little bit short of being good enough.
Maybe they were right too, but I think we need more then one incident to form a judgement. If we had these stories, and Galway had declined dramatically under Cunningham it would have more meaning, but they had actually improved a good bit under him.