Well it seems very logic to me. Imagine the red epic gems(int,str,agil,..) Costing up to 5k (Don't know how it is on your server but on hellscream eu it is). Suddenly, you can buy them for 750 conquest points instead of having CHANCE on them after you killed a boss in normal/hc dragon soul. They would be forced to limit it somehow that you only can use the gems for pvp gear.