My first question is why someone would leak about POTUS not being a criminal target now, and apparently it was not to be shared yet?
Who benefits from leaking it?
Black Hats Mueller and RR I guess. Don’t know just yet.
Wonder if the leak hurts the round up of bad guys, somehow, causing them to seriously unload evidence they needed or wanted to keep and that Q & Co is after.
As a talking point, the leak is thin gruel. It's like Comey's "literalist" statement that Trump was not under investigation, when it was known he would be. Not being a criminal target is a meaningless and valueless give.
However, as a means of stirring up chatter, the meaningless point has power. So, I think premature disclosure messes up coordination between events in this Russia Russia Russia" flip the table game. Who benefits is the black hats.
Who could have leaked is anybody in camp Mueller (that includes RR), and anybody in the WH who was privy to the conversation.