Quoting from the article:
"Additional documents obtained through a federal lawsuit by Judicial Watch show Clinton had directed Petraeus to send her emails at her personal address, which was used for all government work during her tenure as secretary of state."
This shows intent in re the bypassing of the security reg's. Comey couldn't find intent? No wonder things a screwed up in Washington.
With them missing, it is now hard to prove the direction she gave the general. How convenient.