User blog comment:ChishioKunrin/The manga's coverage of the White Trailer/@comment-26882656-20170625150304/@comment-25936766-20170625211055

@Grey: The Armor and the Paladin are a bit too completely different in functions and design and just about everything for the former to have been a prototype of the latter.

That said, if the "normal" Armors apparently are able to fight, they probably are indeed robots.

.........But now that I think about it, robots or not, I don't think the space around them is really in their favor. Anyone could just go up the stairs and make it difficult for the Armors to fight back.