I think the reason Gridania doesn't get consumables is because it's the only one with a starting healer class.
Ul'Dah classes get no spammable healing skills, so they get Alchemist to make potions.
Limsa Lominsa gets Arcanist, which is a DPS but WITH a spammable healing skill, so they get Culinarian to buff you up so it's not so hard to heal when you're DPSing
Goldsmith covers Masonry already in furnishings.
The idea of adding something more doesn't make too much sense, but they DO have the start of the Sightseeing Log, if that counts for anything.