Ah..no! Being a tribal myself, (not from PNG) I can say, no tribal is that innocent, he is simple no doubt, his lifestyle may be simple but innocence is not a forte. A white man is just a technologically and maybe intellectually advance tribal. But the savagery and bloodlust is the same among humans, white black or purple for that matter. You only need a catalyst real or imaginary to ignite that spark of savagery.
A chinese/japanese kinda voice translating the local's interview? Being part of the British colony once and having English as one of our official languages you can't find a PNG translator? 🏳️