Originally Posted by
LineageRazor
It's the PLAYERS who decide what the standard is, not the developers. What do most parties do when they enter a casual dungeon? Pull wall to wall. That makes them the standard, whatever the developers originally intended. Behavior of NPCs in those same dungeons is completely irrelevant.
It also would not surprise me in the least if the devs DELIBERATELY made the Trust NPCs slow, in order to encourage folks to use Duty Finder more often. Gotta fill those parties, after all! Additionally, I'm guessing that if everyone was running dungeons solo with NPCs rather than in parties of four NPCs, the number of dungeon servers required would quadruple, so it's in their interest to discourage NPC runs. The option is there if you want it, but playing with other players is the preferred option for getting those Tomestones FAST.