The Trust System was prefect, why do we need to level them now?

[Mhaeric]

This was explained to us that it would need to be done on Shadowbringers launch, and is not new at all. Recently they added the ability to do dungeons in "Scenario mode" which removed the leveling requirement, but also limits you to which trust NPCs were available for that dungeon in the story.

Scenario mode doesn't unlock until you've leveled them all to 80.