Seems like that some NPC's and Quest/Gameobjects for both Goblin and Worgen Starting Zone are buggy. (Wrong Instance)
Hostline NPC's are not really Aggro and you can walk through them without getting aggroed.
DK Starting Zone got some Bugs too with early things like the Teleporter in Acherus or the Eye of Archerus.
Patchwerk in Archerus seems loosing Aggro really fast and therefore resets himself each time after hitting.
Looking forward that those things are fixed within the VIP Version of it, that would be a criterium to support it!