Oh, come on. Who could really have a problem with someone taking three minutes of your life to backup your perfection in order to check you're as perfect as ever?
Sadly, the duty auth can't come with you to the locker room to help you dress, so your clean underpants and leg restraints are pretty much your own affair.
The outbrief (final brief on your way out to the jet, for that asked what it means) has one basic function and performs two services. Its function is to keep people's safe and effective. You work out how that works.
The services are to backup the flight lead's work in preparing for the sortie. It offers him a quick check of all the work that's gone into preparing for the sortie. Something I never resented as a flight lead.
It also allows the authorising officer or duty auth the chance to discharge his duty without having to attend every planning session and briefing personally. Good news when he has to do so much else with engineering, Ops and may also be the DOF, with all that entails.
It's simply a check before walking/stepping. Nothing here to fear. And it works both ways; the duty auth also gives updates to the crews, stuff that's changed since they went into a huddle.