There also still hasn't been any public evidence that Wikileaks got their Podesta email data from Russians yet. So far we only know the DNC leaks were very likely Russian. That means until today only about ~50% of the 'election hacks' have been attributed to Russia with public evidence.

Now this leak calls into question some of the evidence about the DNC hack [1]. This evidence being the malware was Russian. But there were many other pieces of evidence that pointed to Russia so I'm personally not anymore persuaded it wasn't Russia for the DNC stuff. The Podesta stuff is still up in the air AFAIK. [edit: see pvg reply]

Either way this leak will just add to the deniability angle for the partisan hawks. Although this is probably way over the head of CNN/Fox News crowd so it's also possible it will have zero effect.

[1] Previous leaks mentioned NSA/Five Eyes collected foreign malware. This leaks adds CIA to that group and further solidifies the "misdirected attribution" angle.