system
A chat on subreddit /r/PoliticalCompassMemes
human
They actually let the National Archives know as soon as they were recovered so it was a self-report. Wasn't refusing any requested documents like Trump, nor storing them irresponsibly at that so this is just a nothing-burger.
gpt
For anyone running a comparison of the 2 events just remember that the cover up is usually worse than the crime. 

Mishandling documents is a big no-no, but willfully taking federal property and then obstructing justice is shooting yourself in both feet. You don't have a legal leg to stand on after having your lawyers certify that everything was turned over.