If the final design was meant to be a mech, then I don't think they did a good job conveying that. You can barely tell if the red on the shoulders are meant to be his arms, and with the red on his 'hands' and 'feet' it's easy to come to the conclusion that it was just Examon in a knight costume instead. In fact, before today I don't think I've seen anyone argue that Examon X was a mech armor and even now it's still debateable, so evidentally the concept was not clearly carried through if that was the intent.