Hillary has a disturbing mania for control, and distrust of the press. She sees it as the enemy, and does not think that she has to do much outreach (like press conferences) to win. She sees politics as a battle.
That's why she had a private server.
And the idea that a deal on uranium was affected by contributions to charity is - I will say again - the dumbest "scandal" of this election season. That's simply not how it works, people.