Just because it's not supposed to be 90% of the game doesn't mean it's a hindrance. The leveling process exists for a reason but it does not need to be obnoxiously long. When we consider that 50 was never meant to be the final cap and will be raised at some point in the somewhat near future, reaching 50 "quickly" isn't an awful thing. Let's not forget that quickly is a relative term and we have no idea how long that necessarily is. Sure hitting 50 won't mean as much to those who gain satisfaction from it but eventually it shouldn't as it won't be the cap anymore.