Just because she may be exonerated under 18 U.S. Code 793 (a) and (b), doesn't mean she didn't violate (f).
Understand each of those sections is separate - they aren't all "anded" together.
(f) Whoever, being entrusted with or having lawful possession or control of any document, writing, code book, signal book, sketch, photograph, photographic negative, blueprint, plan, map, model, instrument, appliance, note, or information, relating to the national defense, (1) through gross negligence permits the same to be removed from its proper place of custody or delivered to anyone in violation of his trust, or to be lost, stolen, abstracted, or destroyed, or (2) having knowledge that the same has been illegally removed from its proper place of custody or delivered to anyone in violation of its trust, or lost, or stolen, abstracted, or destroyed, and fails to make prompt report of such loss, theft, abstraction, or destruction to his superior officer—
Shall be fined under this title or imprisoned not more than ten years, or both.
tl;dr - Whoever...through gross negligence permits [stuff]...to be removed from its proper place of custody...shall be fined...or imprisoned.