Fwiw, count me among the "Why are some people so d--- good at finding the worst possible time to start teenage melodrama?" contingent. (For better and worse, a reread seems to show Andi's sulk has been brewing for some time.)
I believe that qualifies as capital punishment.
Falling overboard after shouting down someone trying to warn her of Frostja's rush would be more darkly-amusing, but decapitation doesn't seem unlikely. As we've seen, Andi is eager to get a head - but looks more likely to lose it.