@McFazzerAbout the Observation Division...
Those in this division have the sole task of personally safe guarding The Superior's life as well as directing the activities of the other three Divisions.
So if Tori really wants to be an A-class bitch and insult an obvious superior and compromise her standing, by all means. The Observation Division will see to it that she is stripped of her rank and privilege, and quite possibly jailed for insubordination.
Furthermore, Yggdrasil gave the stone to us to carry so that it would be impossible for the rebels to take, unless they knew specifically we had it (which they don't, to my knowledge). The blast already happened, and a good distance away, farther than to compromise Cecilia's safety. Not to mention, as a bigwig of her division, she still has duties on the ground to oversee.
Let's be real; someone who works in a national library isn't going to talk down to the second-in command of what amounts to Homeland Security. Doubly so, with Cecilia's reputation.