It is unreasonable to expect a game to use multiple digital DRM systems. I'm not aware of any game that does this - the closest you get is with outdated physical CD based DRM which is patched out by the DD providers. Modern DRM is far more complex (obviously) than the old style of "is cd in drive?" DRM that could be cracked by changing a handful of bytes in the game's binary. But it is their problem, and what you are demanding is for them to ignore something that they consider to be a significant problem for what? So you can have a slightly more convenient download? Or 16mb of extra free RAM from not running the Steam client? It is not a reasonable position to take.