It looks so silly! But there's an equally silly chestnut among archeologists, that when an artifact is found and the boffins can't divine it's purpose, the go-to answer is "religious use" or "ceremonial".

The neck part of the armour is actually quite clever on closer inspection -- no complex moving part, doesn't restrict the wearer's head movements (well, other than looking at your own feet I guess) and seems to offer robust protection.

It reminds me somewhat of the benevolent aliens in Fifth Element.