Tip mission spawns Carnies together with Council

[ZorkNemesis]

Another one for the pile of incorrect groups spawning together.  The Tip mission "Darrin Wade's Wish List", Rogue option (Steal the Duplicate Artifacts, level 30-39) has a Carnie boss spawning with a group of Council members instead of Carnies if difficulty is turned up (presumably she'd spawn alone with x1 players).  Now there is a twist in this mission that the whole thing is a trap by Longbow, but then why is Longbow working with the Council?  It doesn't make sense no matter who's running the show.