Trusts do aoe but only if the mob they are fighting is taking too long. Doing big pulls can be risky as both Alphinaud and Urianger can both not be on the ball. Then each trust has their own personalities and quirks. Like Alphinaud can become focused on healing Alisaie more than others. Though Alisaie does tend to stand in the bad from time to time. Running with trusts isn't supposed to be as fast or faster than with actual people. Trusts also skill their dps based on yours. Course I did have an Dohn Mehg run where Urianger was fairly impatient as he felt the need to spam gravity over and over before whipping out death.