except he's on all 4's... This looks like a human-mechanical-rhino, the poster just looks like a mechanical-rhino. I think that's what people are disappointed in...
Just because he's standing up doesn't mean the suit is standing. The height he's at almost resembles the height of his face when he's on all 4's. (From what I can see in the poster) He could very well be in his rhino stance the entire movie.
if that case i dunno why they would need to push him the way they are, if he has to stop everytime he is upright
Just because giomatti is upright, doesn't mean the rhino is... The rhino mech could easily be on all fours while the operator is vertical.
i assume the whole structure will be his height and they wont digitally shrink him