As and example, Blackguards Special edition has a dlc that is separate to the regular installers. It isn't listed when you use the "--list" function or downloaded when you use "--game blackguards". Also, It does not download it when you use "--game blackguards_untold_legends_dlc". The information can be found for the installers etc on the http page when you parse it looking for extras information.
Just thought I would let you know :)
And thankyou for adding the report function. It makes keeping track of what has actually downloaded so much easier.