IMO nothing in the game really teaches anything so I agree with you here. At the same time you have to pay way more attention with trusts and squadron than you have with real players because with others (especially if you are the DD) you can be carried through the whole dungeon and die to everything without consequences. If you die with the NPCs that fight is over and you have to start it again. Of course one could AFK between the bosses and I have used that with trusts to take a breather when I was leveling it all up. But as soon as the bosses are there you have to be on your toes.