gringotts cannot open file from network share

Binary package hint: gringotts

Opening or saving to network share is not possible from Gringotts. Could someone please explain to me why opening/saving is not the same in every application in Gnome? Because this is not the first time I have seen applications without network shares being visible in the save/open dialog screen. Isn't it like calling an object like save file and thus being the same everywhere? Or is this a too simple view of how stuff works inside Gnome?

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=8.10
DISTRIB_CODENAME=intrepid
DISTRIB_DESCRIPTION="Ubuntu 8.10"

ii gringotts 1.2.10~pre1-2 secure password and data storage manager
ii libgringotts2 1.2.1-12 gringotts data encapsulation and encryption