Here is a simple formula:
Faster white listing=More active modding community=More content=Happier players=More players=More sales=More revenue. Everyone wins.
From a business standpoint improving the whitelisteing process improves business. The wage spent into someone/s working on white listing gets compensated many times over by the free content the community creates for the game and it's players to enjoy. Even creating a forum group that sorts through all the white list wannabes, discarding the bad ones and narrowing the list down for the final say from TWI would be awesome.
Edit: to Slavek's comment below, feel free to move or delete this, nothing will happen anyways.