Board Thread:Show-Related Questions and Answers/@comment-24386552-20141201230535/@comment-24114452-20141202010638

What if those who doesn't posses heart are unaffected by spell of shattered sight. Killian doesn't have heart so maybe he isn't competent to feel proper hate for anyone. Also I think that Snow and Charming may not see worst of each others because they both share same heart. Afterall creators of the show said that shared heart plotpoint will be topical in this season. Ending of the episode did make it look like they we're ready to start a big fight, but maybe that's what they want you to think. Wouldn't be a first time.

But that's just a theory, OUAT theory!