Earlier quoted context omitted.
I would expect that it would do what every other unexplainable but repeated phenomena did in pre-scientific cultures, become part of the mythology. See: Weather. But my only anthropology was a few GE classes in undergrad, so maybe someone with actual knowledge can chime in? Hopefully future history books (or niche Ph.D. theses more likely ...) won't include a section about the bloody war between the plane-ists and th…
from their faq ( http://www.uncontactedtribes.org/articles/3109-questions-and... ): "uncontacted tribes will have seen aeroplanes on numerous occasions. The idea that this damages their self-image and/or spiritual beliefs belongs in the realm of fiction, and is based on the false supposition that their cultures are fragile. Experience shows that such peoples are in fact robust and well able to adapt to outside goods…
It may not "hurt" them, but it does influence/effect them. It has to. Going way back to my anthro classes, all primitive cultures crafted religious beliefs as survival mechanisms, to pass down stories and things that would benefit future generations etc etc. It was also a way to explain what they couldn't explain but still experienced (weather, natural disasters...) and this would fall into that category.
What the FAQ did was use inflammatory language (damage, fragile) rather than talk about how this might shape and craft their thoughts and beliefs. If we haven't contacted them, we simply cannot know if IT DID impact them.