Maybe not to the prefab vendors, but in all fairness... they did add a bunch of them to other vendors. There's a new vendor in the Crewskills area that sells all kinds of stuff for data crystals, the Star Fortresses also give a bunch of decorations, both in drops and through achievements... and that's not even counting all the event stuff like the BBA, so they -are- actually adding them.
It would just be nice to have a way to get the older, pack stuff more easily. If they left the BSG deco packs around, I'd be perfectly happy with that, since it'd lower the GTN prices to something that's not ridiculous. (for the most part)