I actually noticed Witcher 2 doing this ever so slightly and consoles are not to blame for that one.
whatever is going on with that dude's video, I'm not sure. Rage isn't that high on my must play list anyways. I'll get it, eventually, but it's easily going to be another month or two before I finish witcher 2 and by that time, SKYRIM and the end of my social life as I know it will be upon me.
Rage may fall into the skyrim playing time sort of how duke nukem forever occupied a couple days of my witcher 1 playing time just to mix things up.