Why? I'd rather they made the ranking up process so much fun that you didn't see it as a grind. Imagine running a dungeon like Darkhold for example, spending an hour in there and come out with 25k SP plus an item if you're lucky. They should have made that ogre drop 5k SP and Batraal drop 10k. Have half a dozen of these designed for levelling plus other non-grind content and you're on to something good.