I see the Trumpers are all delighted over a disagreement between Mueller and Buzzfeed, Muller disputed the accuracy of some things in the article, but importantly he did not deny the basic truth of the story. Donald thought it was true because he publicly threatened Cohen's family over it. I would suggest ya relax a bit, the house investigations haven't even begun yet and there's gonna be all kinds of shit hitting the fan in a very public way. It will still get the ball rolling on an impeachment investigation so the congress can gather facts.
It sounds like Mueller was trying to plug a leak in the investigation and throw Trump off interfering with the it. Maybe a couple of FBI agents were pissed off about not getting paid because of Trump's shutdown.