Board Thread:Questions and Answers/@comment-5780397-20150116191314/@comment-17259909-20150121230249

They didn't take stronger Hunters because they didn't need 'em. If things got really bad, the Rose would have taken care of everything. If it still didn't work, they would drop another. The Hunters that were sent were more of a safe gamble for the association, seeing how Knov and Morel were low-mid top-tier, whereas Gon & Killua and Knuckle & Shoot were mid-high mid-tie, and Netero (and Gon-san) was top top-tier. If the Ants were too strong, a Rose would easily end them, and the top Hunters would still be there. Oh, and Netero might have factored in Beyond, since if he died, the stronger Hunters would need to make sure his son doesn't go to the Dark Continent and unleash something worse than the Ants.