i think this is an interesting area to explore, but that what is being discussed in this article is largely specious. if there's anything to draw from it, it's that the tribe in question enforces more rationality while our "weird" society enforces irrationality through advertising, television logic, etc
the issue of anything being innate, one way or the other, does not follow, one way or the other.
i've always realized that it's clear that what kahneman really hit on was the effect of mass brainwashing and the whole experiment in advertising and population control that began after the great depression.
but i've also always assumed that these effects are exaggerating something more innate, and that this kind of brainwashing couldn't work otherwise.
the study doesn't really examine these questions, it just presents a case for tabula rasa (without realizing it).
http://phy.so/301643668