Oh @deadlygazebo, your comment leads me to wonder:
Since you can obtain all 3 crystals with only 3 points on your warport pass, and then presumably accept Smalls' offer of fast travel back to Goznor (unless that's unavailable if you don't yet have a gold pass?), then is it possible to fight the security demon with just Mardek and Elwyen when travelling to Aeropolis to see the play? This is interesting because this is at a point where you are otherwise unable to fight any battles. Hm... maybe I'll have to play through again and deliberately use the Warport as little as possible, and then maybe I'll see...
So nearly 7 years on from when I first played this game, I've finally completed this masterpiece. Mixed feelings. Happy to have completed it, and fully experienced the game and the story, but feeling kinda sad and empty thinking, "well, this is it..." we're never going to see what was going to happen next. Kinda sad but I respect the developer's decision.
 "MARDEK RPG: Chapter 3"){kind=icon}