We're not entirely sure on the reasoning behind this decision, but it might be something of an annoyance for players. Although, with previous expansions at least, the item was largely completely irrelevant by this point. Spirits of Harmony, in so much as they can be traded for items in the Shrine, have at least held some value. So don't stockpile them for an alt's crafting, on the basis that they might become BoA, or for an auction house bonanza that may never come.
Filed under: Warlords of Draenor