Sometimes we got some quest asking us to do dungeons in normal or hard mode(or even manic but that doesn't matter in this thread).
What I wanna say is, why can't we just do those quests in an harder difficulty and get the quest done?
It is mandatory to do the quest at the difficulty asked and we can't complete them in the harder way.
Don't you think we should be able to get the quest done even in the harder scenario?