I was never a fan of loot trading anyway. Now I don’t think that warrior rolling need on a item which is for his friend mage is a problem. I would blacklist anyone rolling on an item they don’t need. So I never understood people’s arguments here.
What I never liked about loot trading is the whispering afterwards - “please give me the item, you can still trade it…” For the sake of avoiding such things, it is good that loot trading is going away in dungeons. Once looted, it’s gone. I don’t want to hear whispers for 2 hours about the loot.