Yeah, and the vote about looking him in the eyes? Pretty sure that could count as a challenge. As well as everything said in the vote's dialogue.
Honestly, I think our best bet is grovelling as much as possible and shoving Shinx down with us if need be. I mean, sure it's gonna damage our relationship, but better that than our lives.
This guy is prideful and ruthless. He is willing to fucking bite off a child of his own species' head, just because it challenged him.
No, we are not appealing to a better nature. If there is one, it is buried.