Even the liberal Nation concludes most likely DNC was an inside job:
A speed of 22.7 megabytes is simply unobtainable, especially if we are talking about a transoceanic data transfer, Folden said. Based on the data we now have, what weve been calling a hack is impossible. Last week Forensicator reported on a speed test he conducted more recently. It tightens the case considerably. Transfer rates of 23 MB/s (Mega Bytes per second) are not just highly unlikely, but effectively impossible to accomplish when communicating over the Internet at any significant distance, he wrote. Further, local copy speeds are measured, demonstrating that 23 MB/s is a typical transfer rate when using a USB2 flash device (thumb drive).
Time stamps in the metadata provide further evidence of what happened on July 5. The stamps recording the download indicate that it occurred in the Eastern Daylight Time Zone at approximately 6:45 pm. This confirms that the person entering the DNC system was working somewhere on the East Coast of the United States. In theory the operation could have been conducted from Bangor or Miami or anywhere in betweenbut not Russia, Romania, or anywhere else outside the EDT zone. Combined with Forensicators findings on the transfer rate, the time stamps constitute more evidence that the download was conducted locally, since delivery overheadsconversion of data into packets, addressing, sequencing times, error checks, and the likedegrade all data transfers conducted via the Internet, more or less according to the distance involved.
https://www.thenation.com/article/a-new-report-raises-big-questions-about-last-years-dnc-hack/
That may be so
But didn't the Awan brothers down load the DNC files on a daily basis to Pakistan using a fiber optic link?