So seems that this quest is bugged at least for me.
The quest in dragonblight, requires you to use “Wintergarde Gryphon Whistle” and use the Gryphon to rescue scared villagers. 2 times now, I have got to the 2nd or 3rd villager, then just get DC, when I log back in, I am no longer on the Gryphon, I am on the floor and unable to use any abilities all I can do is run around - Enemeis are there and will attack me but I cannot attack them back. Then I just die randomly even with me having 60%+ HP - Also, NPCs are gone. First time this happened, only way I could fix it by using the self service to un-stick my character which placed me in Elwyn Forest. It has now happened again but this time I cannot res, I cannot use the Unstick feature because I just used it (stupid rule) and now I am unable to play my game for 8 hours… What is this!?