Board Thread:Spoilers!/@comment-1916997-20180303031455/@comment-1916997-20180331015334

Well, looks like this is basically confirmed at this point. And we have the reasoning too. Hansel was both tramatized and burned as a child by the Blind Witch, and then later Drizella (at Gothel's whim) killed Gretel. Makes sense he would want all the coven witches dead.