User blog comment:General MGD 109/Demonic Omens/@comment-3045936-20130216040636

Maybe, she was hidding them. I mean, before season 3 the only the could kill a demon was the Colt. And, by season 4, angels were becoming active. So I think, even if Lilith didn't fear the majoirty of Angels. She, didn't want the armies of Heaven to hunt her down. As demonic owem as a common tracking method for anyone looking for them. A more simple, reason though to. Hate to say it but maybe the producers just forgot/didn't want to add etc them.