Unfortunately if they can't really provide any evidence of where the money is gone I think greed probably got to them.
I don't think the lack of being able to prove their expenses is evidence of wrongdoing. They did not agree to prove their expenses and continued operating for years without proving their expenses, but did receive additional donations after their level of documentation was well known.
Someone asking questions is not evidence of guilt.
I'm curious of all the TXIDS that happened during the spit that cabalism mentioned. Also, as escrow, why you agreed vs keeping the funds in escrow?
As a charity, their intention is obviously to spend their donations on charitable causes. The only way to spend donations is to distribute money to those able to spend money on causes the charity wants to help.