Why would Sony give up all the emails and financials and information one would assume to be confidential for a movie? I doubt that Sony allowed emails degrading Jolie, Denzel and others just to prop a bad idea for a movie. I suspect someone who was upset changed Sony’s computer’s password to “password” and let the world’s hackers have at it.
I won't discount it - we'll probably never know the rest of the story...
Yeah, the theory makes no sense whatsoever, but anyone that would believe it is probably not going to be bothered by the lack of sense.