He was in a cleft stick. The report said there was failure within the leadership and that the law was broken. If he had said the report was correct he would have been admitting that the law was broken on his watch. If he speaks against it he gets suspended.
Very neat for those against him, he is in a no win situation.
I don't think he is a bad man and he obviously has some very strongly held personal beliefs, but I believe he had been used and manipulated by others for their own political ends. further than that I couldn't comment on the workings of the labour party as I have no knowledge of it.