I think, some regions are getting less slots despite having better contestants. But people in some other regions take slots as granted. They don't care at all about WF. They think that qualifying for WF is a lifetime achievement, why bother practicing, let's enjoy the tour instead. So, they don't even stand under rank 50, for years after years!! Participants from these regions continuously perform poorly. So, I think it is better if their slot was decreased so that they would be motivated to perform better next time.