You're not thinking big picture here. Who was the one sent to Benghazi to intimidate Witnesses from talking to Congressional Investigators/House Members about the attack and the lack of response from State? Who is/was Hillary's Chief of staff? Answer to those questions is the one and only Cheryl Mills.
There is no big picture to security violations like this. It is pretty cut and dried who had the clearance. Hillary is responsible for anything that happened to data that only she was cleared for, allowing other people who are not specifically cleared to have access to that data to handle it is itself a violation. Everything else is just spin for people who do not know how classified information is supposed to be handled.