That is a correct statement, if you dont have the treasure hunt you will not get a loot fairy at the end or even a magnificent chest, you would just get a simple chest.
I think you should add a few more Q&A's to the LF tracker. Since co-op emerged there have been lots of questions asked, not all answered. TSW URRREE(R) Ephriam's Crazy Boots (again), Trickster's Blade
Sinister #27: UURtRRR(R) Chronak #20: UUtRtRRR(R) Re: treasure hunts The rule is that you can co-op anything the team leader can play, but if you don't have the module unlocked (including regular adventures not yet on your map), then it's treated as an exhausted adventure and you just get CC(C) in the final chest.
CoC UURREEt(R) Granwick's Ringmail, Smoked Nauticorn UtRRREEt(E) St. Voral's Charm, Handcrafted Pipe, Trog Melter
CotT #1: URRRREt(Rt) Silver Candelabra CotT #2: URRRtLL(R) Relic Of St. Darqar, Unholy Nimbus I don't always get double legendary loot drops... but when I do, it's on lvl 2 adventure.
CotT #2 : URRELL(R) (daaaaaamn why this on a lvl 2 adventure !!) Atlatl Of Zuma Staff Of The Misanthrope (got 2 of them !) co-op with @Qivril and @VermillionOcean