In theory yes, but that does not serve our political interests to mention this possibility, so I would borrow a page from the Liberal Media, and only mention such things as support our narrative. Truth be D@mned, this is war.
There are many reasons why a hacker may have copied the files locally first. He may have wished to review them before stealing the "good" ones.
And how many hours would this have required to wade through a couple of gigabytes worth of data? The theory that there was a local copy prior to a lower speed transfer through the internet is a very weak theory.
Then again, when it comes to Market Ticker and Karl Denninger it is always a good idea to keep your eyes open and look for ulterior motives.
It's always a good idea to do that with everyone, but then i'm quite the cynic nowadays.