Some professions are amazingly useful in pvm and not so much in pvp. Some are absolute crap in pvm (agents/traders) and decently useful in pvp?
If you want to balance pvp to make it fair? How about we make pvm fair as well to other professions who have no use in endgame encounters. Apparently u did not understand that when you added the boss/root in last patch. Agents are now completely useless in all endgamed encounters ( we used have a little use in alba, now that's gone).
A lot of top pvp professions are quite good in pvm as well. Where's the balance in that? I envision there are pvp professions and there are pvm characters. You can not have the best of both worlds.