The decision to name Carmen Ortiz was deliberate; she is a political appointee and thus could be dismissed at the administrations pleasure. That they chose to hide behind the 'cannot discuss personnel matters' figleaf is to put it plainly; bullshit. Political appointees are just that, political; and the fact that the administration is too cowardly to defend their choice in this matter speaks volumes.
It doesn't really matter; Aaron is still dead, Carmen Ortiz still has her job (although hopefully her political career has topped out) and we carry on.