I don't think many believe you or your friends are sandbaggers. I think it is obvious that your friends' team played hard and well only to find themselves in a predicament. You shouldn't translate some posters general defense of all things APA, as an indictment on you and your friends.
As far as the time and resources working on this, I agree it is worth it but for a different reason. It may help other team captains and LOs to avoid such a predicament in the future.
I was at the event for Masters. I saw some of the matches in question, as I had friends in the same draw. I have a much different take on how things went down, but opinions are like assholes. Everyone has one. His team was disqualified. There are merits to both sides of the argument. But the 2 in question did NOT play like a 2.