What I take from this is that they're using much the same stance as Millenium G-suit actor Tom Kitagawa did; reaching for a more realistic pose/performace that's still very "man-in-suit" - which is a good balance, if you ask me. All of this is moot anyhow until we actually see the movie and observe how he moves on film. His posture may change (much like any person or animal) throughout the film, depending on what he's doing, how much exertion he's under, the rise/fall of the ground, etc., etc. Let's not just assume or pick too many nits... just yet.
