I did not in fact say that. I'm addressing the broader false claim that the ocean is some sort of essentially unregulateable space. Indeed, I think the final paragraph makes clear that I think it's possible that no agency currently has unambiguous authority, but that won't stop people from creating one if enough people die like this.

I also suspect that people with broad authority may investigate this and consider/recommend prosecutions if appropriate. E.g., the Washington State Attorney General, the US Coast Guard, and the Canadian Coast Guard.