Description

The Winterfall "Den Watcher"s aren't marked as an objective for Winterfall Activity.
They have a marker for threat of the winterfall though.

Wowhead link

https://classic.wowhead.com/quest=8464/winterfall-activity
https://classic.wowhead.com/quest=5082/threat-of-the-winterfall

Screenshots

Questie version

4.1.2

Hmmm... They're listed as objective for Winterfall Activity as well 🤔 Most likely also related to the determination of quest objectives. So a fix will be in the next release or v4.2.1 might already fix this.