Not to get them to stop looking at wikileaks, no, but to:
1. Change the topic of conversation from the DNC's dirty laundry to "WikiLeaks is evil." Similar to the "Russians did it," "Trump's a Putin plant," "everyone clutch pearls because an evil foreign government is influencing our elections even though we're just guessing about that" narratives. Spam the news with anything other than the content of the leaks themselves.
2. Poison people against future releases from WikiLeaks. The Hillary campaign has already stated that the next leak will contain "falsified information." How they know...who knows? But it's all about establishing doubt and generally discrediting the source. After all, if wikileaks is evil because gays and cancer patients, who's to say they wouldn't fake stuff now?
3. In the long term the establishment wants WikiLeaks and Assange, gone. Anything that can be done to discredit, slander, malign, and generally make them lose support serves that end. If nobody likes WikiLeaks anymore then few will care when the next "cat burglar" makes it through.
What do you think the purpose of writing this story was? Now, a year after the events? Just to casually inform people of old news? It's not like there's any new information here, or new developments in the story. It's almost as if the point of the story isn't to inform you of the news, but is to shape the public's opinion of WikiLeaks. Naw, that can't be it. That would make our news media propaganda, and that's crazy conspiracy talk! You're smarter than that, aren't you?