So what? Why wouldn't they pre-load unfinished stuff on the disc and shorten download times down the road for DLC? That doesn't mean it was a finished part of launch and just "locked away". I bet there are tons of weapons and armor pieces, shaders and NPCs and such tucked away on the disc that were "finished" but not part of events or areas that are finished. It's called smart project management... they can still modify the items/areas/missions later with a patch if needed, but they ship as much as they can fit on the disc up front so you have fewer multi-GB patches down the road since, despite how it appears, lots of gamers still have crappy internet connections.