Higher experience than what? It gives you more experience than Krokotopia and less than Mooshu. The further you get into the game, the more experience you get from mobs and from quests, but the more you need to level.
I agree with Quizzical on this one, if you look at the different worlds you have enemies with higher levels that take longer to beat, so your exp points should be higher so you can "keep up" so to speak. Would it be fair to the wizard if the enemies became stronger but the "wizard in training" didn't? No no no.....it would not. I am glad to see that the exp levels go up along with the minion battles (non-boss battles). The bosses are what they should be....harder and harder. It's the challenge of the game.