I also did something on one of the anglers quest:
Previously you had to use an object on the mobs which was kind of buggy and sometimes it just did not work.
I tried to kill them just normally and it worked. You do not have to use the item. Just kill 5 Mobs and loot the spine.
Pathfinding in this area is not there.
<!-- Huff n Puff -->
<If Condition="HasQuest(30658) && !IsQuestCompleted(30658)" >
<CustomBehavior File="Message" Text="Starting Huff n Puff" LogColor="Green" />
<CustomBehavior File="UserSettings" QuestId="30658" LootMobs="true" PullDistance="10" />
<CustomBehavior File="FlyTo" X="-2039.777" Y="526.7104" Z="0.1" />
<CustomBehavior File="ForcedDismount" />
<While Condition="HasQuest(30658) && !IsQuestCompleted(30658)" >
<CustomBehavior File="CollectThings"
MobId="60037"
ObjectId="80529"
CollectUntil="RequiredCountReached"
CollectItemCount="5"
CollectItemId="80529"
QuestId="30658"
HuntingGroundRadius="120"
IgnoreMobsInBlackspots="false"
NonCompeteDistance="25"
RandomizeStartingHotspot="false"
X="-2128.736" Y="456.9435" Z="-28.55532" />
</While>
<CustomBehavior File="MyCTM" X="-2039.777" Y="526.7104" Z="0.1" />
</If>
I tried it two times and it worked good