Dajrool is using the faction Droga Goblins, which can be raised by killing NPCs on the faction Nurga Goblins, and vice versa. The problem is, the goblin population in Droga and Nurga both pre and post-revamp are on Goblins of Mount Death faction. Very few in-game NPCs are using Nurga Goblins / Droga Goblins. For example, Dajrool is the only NPC in the game that uses Droga Goblins and as far as I can tell, almost none of the goblins in Nurga are on Nurga Goblins. I suspect Dajrool was originally intended to be in Droga and you were meant to raise your faction with him by killing goblins in Nurga before you could access all his quests and dialogues. Changing the way faction works for Kunark goblins now, specifically for this quest, feels not ideal, so I've changed Dajrool's faction to indifferent and lowered the faction requirements for his quests and dialogues to indifferent.