Narrative.
Podesta knows that it wasn't Comey's decision to go public.
Comey's hand was forced when George Toscas found out about the Weiner laptop (NYPD leak?). He was going to blow the whistle that FBI was sitting on the info. Comey had to jump in front of that bomb.
Then, as usual, it was swept under the rug, despite finding MORE confidential emails.
This is all in the Strzok-Page texts.