We can all hope he was one of the one's who 'stormed out in disgust', but by his lack of publicly expressed disgust for these plans, he is every bit as evil as the rest of them sitting there on the QF Board.
I've had dealings with Cosgrove when he was Chief of Defence Force. He is a good man, IMHO.
It would be a big step for any board member to hang out the dirty laundry in public. I suspect he is not a happy camper in the boardroom, particularly if he still has affinity with the troops. His lack of public expression doesn't necessarily make him evil; just discrete.
Public airing is not the way of his background, nor his style; he had plenty of opportunity if he chose to do so with some of the government decisions he had to endure as CDF.