This is still buggy. The first attempt I received no credit. The world quest tracker would not even register there was a world quest at that spot despite being engaged in combat with him. Camping out and logging back in registered and let me get credit from the second kill.
There are other non-elite world quests like this. I’m not going to bother listing them yet again. You can go search my prior bug posts about buggy world quests in Nazmir.