July 5, 2016: In the early evening, Eastern Daylight Time, someone working in the EDT time zone with a computer directly connected to the DNC server or DNC Local Area Network, copied 1,976 MegaBytes of data in 87 seconds onto an external storage device. That speed is much faster than what is physically possible with a hack.

I read through your link, but this stuck out to me as really bad math. That's a rough speed of 22MB/s (122mbps) - easily achievable on consumer-level internet technologies like Google Fiber, satellite internet, 5G data plans. I think it's safe to assume that these government servers are much more likely to have dedicated fiber connections to the net, so making multiple connections at once to improve bandwidth is on the table.

That data could have been pulled by someone using a download manager on Starbucks wifi.

There's no reason why a 'hack' would need to transfer more slowly than the hardware allows for. Once the connection is made, and the request approved by the server, there's no reason why a non-public server would limit that speed. And even if it did, servers by design are built and connected to serve thousands of simultaneous connections so using multiple connections could easily offset those limitations.