I never stated that the bluetooth audio streaming works fine. Bluetooth audio streaming was added to the iOS in 3.0 release back on June 17, 2009, before that you could not stream over Bluetooth. The iphone 3Gs was released on June 8, 2009. Since the list does not show the iphone 3Gs or iPhone 4, logic would state that they no longer test the iphone and thus they did not update the list to show when apple added bluetooth streaming.
I did see the revised list date of 19 days ago. They could have simply just added new phones and not retested old phones. The list does not state that all existing phones were retested for compatibility. With so many phones, phone OSes and updates, I would not expect the list to ever be up-to-date.