For people like me (casuals) why wouldn't be able to benefit from such a quest.
People who have the the advantage of being able to play a lot they can also get a super quest to boost their leveling,
while by the time we get there it is removed or made daily. Let every one benefit from this.
no one will bother if it's daily tbh.. if they increased reward 100x - maybe...
I say add similar quest(s) for melees/archers, and in a place where you won't have to wait 10 minutes for each mob to respawn at your nose instead of one of the other 100 people's nose.