Do we have a screenshot of that set in the game?
I'm not dissing the Lost Allagan set or anything but I don't think it made the transition from paper to in-game quite that well and for all we know it could be the same case with this.

Also an important thing to note about the set is that they can go as crazy as they want with the design without having to worry about how they can make 8 different versions of it for the other classes, so that's another reason why it looks better than most of the PvE gear in the game.