User blog comment:Darkcloud1111/The Bigger Story Behind the Story/@comment-11188061-20141019082638/@comment-3146930-20141020002116

The main problem with an ambush is that despite not being as strong, Grimm vastly outnumber Hunters and if the Hunters decide to lure Grimm to one spot with negative emotions, that isn't the kind of trap you can just shut off. Even worse, if any of the Hunters get tired, worried, or even scared, that would only serve to draw in even more Grimm.