Leaked document appears to be from 2013. Have you considered the possibility that the FBI was itself the source of the leak and the questions/methods have since evolved?
I'm not sure speculation changes the central premise of the question. Assume that the document was up to date with the latest techniques. Would you still that consider it to be a document worth leaking for the public good?
edit: I will acknowledge that the age of the document does change its impact. But 2013 is pretty recent.
edit: I will acknowledge that the age of the document does change its impact. But 2013 is pretty recent.