Iirc, it was only made temporarily because they had both the old and new servers running simultaneously for a month, and this was a way of using a lot of them without too much work, and was removed intentionally when they went back to a single set of servers.
Commander mode was amazing! I miss the unbeatable Rhodok tactic (Rhodoks OP!) where all archers are made to go melee (with their board shields), and cav and dismounted (with their shields), and infantry (with their Board shields) are bunched as closely together as possible and then left to charge in one massive shielding infantry blob, unbeatable :PRhodok Master race :D