Just looked at that a few days ago and your interpretation of the Airbus guidance material is the way I also understood it.
At my company on the Airbus fleet, we also roll forward before doing the brake check, but not to the point of a stop (just checking that breaking action is there and that the braking has reverted to the Green system). It could be argued that this is a general Airmanship technique and the SOPs published by other aircraft advocate this approach.
Nothing wrong, IMHO, in doing it, but coming to a full stop, as you mentioned, seems a little over the top. Research into the reasons for this at companies sometimes reveal interesting personal preferences such as "this is the way we did it in the Air Force on the Nimrods", etc.
