3.23 Affliction Expanded Inventory

Why is it Wildwood Primalist which has Expanded Inventory when on the Warlock of the Mists you are at least sometimes supposed to carry a couple of corpses with you for Soectre Summons?

Unless I missed something and all three new Ascendancies have Expanded Inventory? It would make sense as all three have new items they could carry around. Not sure if you can change Charms in Maps etc. though.