PVP and PVE are already very separated for every job. Many abilities work very differently in pvp than they do in pve and jobs are given abilities they don't learn in PVE until max level at the lowest level possible to queue for pvp. For this reason I see no reason blue mage shouldn't get the same exact treatment for pvp. Give them a working tool kit for pvp and allow them to play in pvp the same as any other job. I don't see any reason BLU should be restricted from using the duty finder to queue for PVP duties. They should be allowed to use abilities not yet learned in pve, if they are in pvp the same as any other job that queues for pvp below max level. Theres virtually no difference.