Did you even read that email? It's from an academic in the Arts and Humanities world and the whole email is basically just a guy waxing philosophic to Podesta about the current election. In context, there is NOTHING revelatory about that email. It's just private correspondence.

That email is the perfect example of wikileaks publishing material irresponsibly. There is nothing in there that is in the public interest, nothing to justify the violation of the privacy of Podesta or the sender.