It is quite likely that someone orchestrated this for maximum impact, but for now these emails looks as authentic as any other leak in the last decade.
That's the game.
If the CIA managed to stop that hacking before it happened no journalist would have cried.
If the journalist had participated in the hacking they would be criminally responsible.
And if the journalist obtain proof of relevant stories (especially related to corruption in politics) they will publish them.
There has never been a poisonous tree standard in journalism.
No that's the active measures of a spy agency.
I would argue that this has very easily exploited consequences: if you want something to be ignore just hire some hacker to surgically hack parts of that information. Not enough to be criminal, and you are safe from the court of public opinion.
Referring to that as journalism is an insult to actual journalists.