Actually the entire quest line from Hanook here in Goru'Kar Mesa has been buggy. I've had to "Remove" the quest after I'd completed all the steps where it appeared in green type and manually type in the text to get the next quest. But the final quest isn't letting me get to the final step "Do not let any of the treekillers close to the tree". The fight never even got up the hill to the tree and Hanook is just fine. Unfortunately, ZAM had workarounds for the other quests but not this one and I'm afraid to Remove it since the final step is not in green type. I've been waiting for close to an hour.
Following the procedure for the other bugged quests in this line, I "Removed" the quest then used /say to manually tell the NPC the correct words. It gave me the 3rd quest and I was able to finish it this time. What made me nervous was that I had officially finished the other quests in the line, but not this one.
