@carnage4life Good find. Standing is not the same as physical activity for sure, e.g. for elderly people standing might be in fact problematic because of circulatory issues in the lower legs. So they are not encouraged to let's say wash dishes (static standing) but they are indeed always encouraged to walk.
What might be beneficial about standing against sitting in the long run is better posture, because it does not enable the so called "rectification" of the lumbar region as sitting typically does.