Good question however many appear to be from the lunar lander which, if I'm not mistaken, was separated from the Command Module before the return to earth. So no one expects these items since they're supposedly in lunar orbit -or crashed on the moon. The lander was being ‘thrown away’ and he grabbed some momentos.
I understand that but the camera was an item of very significant importance from a practical as well as an historical perspective. It would be nice to think that the people in charge would have asked about it instead of supposing or assuming. Maybe the problem is that everyone thought someone else had looked into it, so nobody looked into it. In the gubermint that’s often the case.