In a chess match, you cannot assume that the other player will do what you would like him to do.  You must assume that, at every move, he will do whatever he can that is best for him.  If he can take your queen, he will take it, no matter how much that upsets you. If he can checkmate, he will, even if that would be a PR disaster among you and your friends.

Same here.  Doing a thorough and honest audit, distributing the 220'000 coins fairly to clients, starting a criminal investigation to find the other 600'000 coins and distributing them to clients -- that is what you would like Sunlot to do; but that is completely irrelevant when trying to predict  what they will do.  You must ask what they can do -- ethical or not -- that will result in most money for them.  This includes telling lies, falsifying and omitting documents, making secret deals with anybody, etc.. 

(And then there is the issue of the two different criteria for distributing the coins, by final account balance or by input/output balance.  Each choice is good for some clients but bad for others.  Sunlot obviously has chosen which clients it likes the most.)

To set things clear, I could not care less about whether MtGOX clients get their coins back or not.  What I want is that all the criminals involved in the MtGOX scam and anyone who tries to help them get taken out of circulation and deprived of their money.  Anyone who doesn't like being robbed should want that too.