I don't really know why it wasn't done as we have it for Payiferen, but there is no addition (made by Race, IIRC) that adds colliders for the outside and allows you to walk. It seems it was in project as this prp file is listed in the Offline-KI pages to be loaded automatically even if not listed in .age file.
Anyway, it seems there are still some lighting problems when you get outside. And then you should have to be able to hear sounds, and it is hard as there is no real outside ambient sound. In Payiferen I think it was done by adding a new sound emitter with the sound file of the broken window.
Else, you can still stay in the pod and watch...
Oh, and if you want to see an Urwin from closer, open "Direbo.age" and remove the ",1" at the end of "Page=drboUrwinShape,8,1"...
EDIT: didn't see when I first posted it, but you can get out of it on DI ???