So.... someone has to ask the question, might as well be me. Why was this submitted to HN and why was it deemed relevant and upvoted to the top page? I am honestly curious.
I'm pretty sure I'm not alone in finding the origins of popular things/products/services interesting - and in this case, it's about the origins of a pretty common and national dish as a result of an odd series of ethnic and economic events. More broadly you could say it also speaks a bit to how and why ideas spread.