If it really is vex themed and not just oddly similar I bet the helmet has some great resistance to head shots seeing as the vex aren't really affected by them.
Would be interesting though now that I think of it. The vex are really venerable to body shots so if this armor held up to shots like the vex then I feel like it would be terrible in PVP. Well unless it only was weak in the lower abdomen instead of the Thoracic Cavity. Eh I guess we will just have to see could turn out to be a game changer either way it looks pretty cool.