Love this set so much I analyzed every bit of it, and once I noticed this, it’s been bugging me for several months (even changed my transmog to something else now).
Mythic (and elite PvP) version has this glowy aura on gloves, but you don’t get anything like this for other versions with nerubian catalyst stone (from 2500 rating/myth Ansurek). It only gives belt, shoulder and hood variants.
https://imgur.com/a/1Xuv54D
Which is sad, even though awfully specific and definitely not the biggest threat to Azeroth 
Thinking of it, it might actually be relatively easy to adjust, since the elite PvP version already has the Light-themed effects, and as far as I can tell, all Light versions have the same crystal/naaru-like elements (the only different one is Mythic, which is Void-themed).