Personally I don’t put any trust on the labels (Duty Complete, loot, etc) because Party Finder is a lottery.

My rule is if the group messes up the same mechanic 3 times in a Duty Complete or Farm, I go. If it’s a practice party it’s kinda frustrating when people leave instantly but it is what it is. :P

I think they should do something in practice parties to lock the phases out if you haven’t got through each one, it could make progression easier and less annoying