Cobalt Assembly is still an awfully boring tedious grind, but at least it can be knocked out in a few hours now that everything dies immediately.
Why there's only a Mail armour set from there is confusing but whatever, the other stuff still goes with the EK racing rewards. Recycled assets of previous expansion, imagine that.

Sure wish the Green Dragon themed stuff got any sort of treatment to easily acquire, instead of stupidly low random droprates around the world!