"both authentic and falsified documents" was speculated in the DNC/Russia hacks, and also claimed to be the Russia Today strategy abotu news, and whether it was true or not then, it's clearly a clever idea for any future crackers.
Yes, that claim was made many times, including by people directly implicated by the leaks, and yet and later it was found that they were all true, with not one source pointing out an actual fake email or document.
The actual sources, no. But given the sources we're rarely presented as the first point of information by the main distributor... it's a fair criticism
The original emails are all there, including verified DKIM signatures for many of them.
Are you suggesting they only included the bad ones, selectively leaving out any good ones?
To their credit, they did make the original emails available - which mostly showed that what the claimed was in them was... well, mostly lies. At best half-truths.
That's what I mean by selective.
From WSJ: "The cache includes both authentic and falsified documents “with the goal of sowing doubt and disinformation,” the campaign said."