The whole damn thing onlyt has about 15 episodes a season subbed. Of like 250 Episodes EACH 'season'. No group ever tried to even tackle it and since, eventhough multiple groups have the raws and have tried to go back to do it, they have all stopped either due to infighting, lacking the urge to go on or fights with other fansub groups.
Plus Nintendo has said it will never release it in America in any form but how it is now. Pokemon will never get subbed.