Item Binding

[Felis]

The Armoire took away the spiritbond due to a system limitation, it's pretty clear that it did not store the particular information about your item at all, it merely flagged if it existed or not (which requires far less storage space and is far simpler).
Given that ARR will use a completely new system, the new Armoire could very well be a complete storage keeping track of all the attributes of the item from repair stage to spiritbond

But they would still be U/U. The items in the armoire can have 0 spirit point and you can still not trade them to other players.