Trust AI should use AoEs when there's 3 or more monsters attacking.

[Hasrat]

Haven't run new content/trusts yet, but consider also the time saved not waiting in queue, mainly for dps. I would assume leveling trusts as dps is the optimal option, as otherwise you'd be leaving tanks or healers on the bench. So. Runs might take longer individually. But, back to back, you're probably still saving time. (as long as you don't factor in time waiting for queue as time you could be doing other open world stuff)

[Booden]

Haven't run new content/trusts yet, but consider also the time saved not waiting in queue, mainly for dps. I would assume leveling trusts as dps is the optimal option, as otherwise you'd be leaving tanks or healers on the bench. So. Runs might take longer individually. But, back to back, you're probably still saving time. (as long as you don't factor in time waiting for queue as time you could be doing other open world stuff)

That would be almost alright if we're only talking about Trust during MSQ. Almost because I still don't see why they shouldn't be programmed to use AoEs.

You don't know this since you haven't done new content, but post MSQ resets your trust party members' levels to 71, and if you want to run any higher level dungeon on an alt class that isn't 80, or wanted to run one of the MSQ dungeons with different trust party members to see how they interacted between each other, well tough luck, you have to level your party members back up, three out of six at a time. They require a looooot of exp, making it a terrible experience to level them up because the runs take so long.