Isn't that mostly an accident of the current data center infrastructure and subject to change? If they had waited until, say, EU-East-1 or Asia-East-1 came along they might as well have called it Switzerland.
They should have called it Uterus.
Especially since Netflix is using React pretty heavily- they must know that there's a conflict.
React is tangible and an actual product; FB's flux is a cute name for a very fuzzy concept.
Well, Flux is a library as well, and it's pretty well understood. Not sure what's fuzzy about it.