Lucasfilm could easily nullify our work by releasing their own version.
Indeed, that was exactly what happened with the release of the GOUT, which many people feel was released specifically to curtail the underground market of Star Wars Laserdisc rips. Whether that was the intent or not, it effectively succeeded in that goal.
This situation is a little different because the GOUT required next to no investment, and its shoddy treatment as bonus material could still pass muster with the Original Vision™ crowd.