Bronze emblem by hooking everyone twice???

Options

If getting 9 hooks guarantees iridescent, supposedly, why does getting 8 hooks only result in bronze? The general way I play is to hook everyone twice and let them escape. No tunnels, no camps, and most of the time they struggle for a while before someone saves them. Just curious as to why it's only bronze and not silver or gold. I usually get gold or iri in every other category too btw.

Answers