Pusser, what about those PAffOs (note the extra "f", or PAO as they prefer to be referred to as) who may have spent the majority of their careers on an Army base, working to support the Army but are wearing an Air Force uniform? (This is a trick question...) The point is, if someone is going to be talking about sub hunting or advance to contact, it should be a SME, not a PAO. And if it is the PAO then there are really only two reasons that this is happening:
1 -- The PAO likes to be in front of the camera (and this should follow up with said PAO being briefed about what their job really is); or
2 -- No SME wanted to talk to the media (unfortunately, the more likely cause), which meant that the 'someone' stuck answering the questions is the PAO.
As for the journalism types who come in, I used to think the same as you, until I finished a nine month course and saw that those with the military background can learn just as much as the DEOs can learn from us.
(Milnews and Cdn Aviator, I agree with you 100%!)