The devs know that the Thieves Guild Finder quests are "not working as intended" (I prefer "bugged," but am being tactful here). The 8 quests, repeatable 3 times, was too many and is being addressed in a future update. Of the two quests which can count as Finder quests, one counts and the other doesn't (also a known issue, hopefully to be addressed in a future update). Considering that a next week's challenges are on the imminent horizon, would it be too much to ask that we not be charged a reroll for trying to get rid of this challenge? Removing it from the pool entirely would also work and probably an easier fix, but the whole idea of "use a reroll token ("pay us") to get rid of a quest which is bugged (sorry) "not working as intended" strikes me as just a bit much.
I'm fresh out of outrage, but I could muster up some amused annoyance if required.