Its not required… right now, but I would not be surprised if its revealed in SE 3 or 4 that the Darkfuse is required to get the meta achievement for TWW. Honestly, getting Exalted with them reminded me of the grind for the Colbalt Assembly rep in DF.
That being said it is what it is. I found putting on some kind of video game analysis and going back and forth between scrap events passsed the time. Just reached Exalted with them earlier today, actually. Kinda odd that the Exalted reward is the trench coat, you’d think it would be the mount and the coat would be the Revered reward, but still, another Exalted down. Three more for the 60th mark. :3