Re: Why Bother moving the Nacelles?
maybe it was a matter of a quick-redesign towards the end of the construction. If Voyager was being built with stationary warp nacelles and then the events of Force of Nature happened, a quick redesign could be worked in to allow for movable warp nacelles, without impacting performance or a lengthy re-design.
I would have loved to see some crew member working in the nacelle pylon get squished to a pulp in the hinge mechanism as the ship unexpectedly dropped out of warp.
Would have made some good drama.
Laws only work if everyone is honest, no piece of paper is going to stop a truly deranged person from doing something atrocious.