What did we learn from the "Russian" hackers?

Roger Simon analyzes it

Which leads me to the real question. What was learned by the American people, the Russians, or anybody else by the supposed Russian hack of the Hillary campaign and the DNC?  Let's break it down to three basic areas that appeared via WikiLeaks.

1. The mainstream media was 99.9% in the pocket of the Democratic Party and their candidate Hillary Clinton.
2. Backbiting goes on inside political campaigns.
3. Democratic Party officials wanted Hillary, and absolutely not Bernie Sanders, to be the nominee .

Am I missing anything of importance? I don't think so. More importantly, was there anything in the WikiLeaks that anyone with an IQ in the proverbial triple digits wouldn't have assumed in the first place?  Not that I can think of.