This happen to anyone else?
The game bugged in your favor, those goblins should have all attack you once you deside to kill Svadilafari.
I met another quest related goblin later and he did the same thing...attacked once then stood there. Got an achievement for killing him too and didn't really feel like I earned it. I am strange that way I guess. Hate to have something bug out so I can get by without doing what I was supposed to do. Anyway, maybe after killing so many, all goblins just freeze in fear at the sight of me now.
