Well, I do know that airplane security is little bit different issue than security issues on ground but this really sounds like overreaction to me.
Tell you the truth it's pretty clear that the airplane staff aren't qualified enough to measure what kind of threat someone is to security at least in this case.
If someone wants to send F-15s and scare the passengers when they fly to the wing, go ahead.
I guess there's no such thing as "subtle" way of handling issues regarding airplane security. Especially in post-9/11 world of US.