Can you elaborate on the context in 2?
From what I've read, he was just mocking a Fox news clip and wasn't threatening anyone but arguably himself.
The video threats are the one charge he seems unambiguously contrite about.
Compare to:
https://www.dropbox.com/s/iv9i3r85fdcpu6g/Screenshot%202015-... https://www.dropbox.com/s/rnk8x15b6y1uw5j/Screenshot%202015-... https://www.dropbox.com/s/fw7nmmht41vtdsi/Screenshot%202015-...
Here's the applicable statute:
http://www.law.cornell.edu/uscode/text/18/875
He plead guilty to 875(c), and the DOJ dropped the "Retaliation" and "Conspiracy to make publicly available restricted information" charges for the same fact pattern. Notable in part because the retaliation charge had a stiffer sentence.