The "government" being the Senate Intelligence committee and Mueller.Backups of the server hard drives isn't access to the, you know, firewall and/or switch logs.
I prefer the fact that no one apparently found any external traffic associated with the email file "exfiltration." Obviously it was taken but any "conclusions" about by whom or how is conjecture. Now that we know that Hillary had in place, at the time, a plan to tie Trump to Russian efforts to steal the election, it begs the question whether the whole emails to Wikileaks deal was part of that hoax. Presumably that implication would offset any negatives associated with what was in the emails - after all, it's not like it was evidence of a crime. Anyone who believed the DNC was interested in a Bernie Sanders candidacy has sh*t for brains. By "every credible source" you mean Crowdstrike and the Government. Crowdstrike has admitted they have no idea if the Russians took those emails, so that leaves the Government, and I'm sorry but that "appeal to authority" is, well, laughable. The Government has been lying to us throughout its existence.
You prefer Putin and Assange.