“...Tribe Is Facing Deep Danger” Yup. Civilization will screw them up real fast. Cell phones, masks, vaxxes. They probably thought they were happy living like they did.
Always the only people who want to keep “primitive peoples” primitive are hyperventilating environmental liberals, self & society-loathing primitive-wannabes and academic anthropologists (Which are actually often all three of those things!)! Oh yes also bloviating western documentary makers trying to invoke guilt on western audiences for not being primitive ! There's cash in that!
They probably are happy, living like they do. Doubt it will last long though, now that they have been “discovered.”