Overseer was marketed as a Catch Up tool. Even at 6 it would take a long time for some one trying to catch up to complete all the collections. Also the people that were starting to see 2 were not the avg player. They probably spent DBC to get ahead on their level that in return was offering them the higher quest. For the Avg person that is grinding it out it would take months of doing a mix of task and getting agents before they started seeing doubles. A change could have been made to the higher levels to not drop as many but by changing it the way it was changed it hurt those trying to Catch up more then anyone else.