According to the article, "We believe that if this license were widely adopted, it could actually reduce meritless litigation for all adopters, and we want to work with others to explore this possibility". What about "merit-ful" ones? Looks like abuse of Open Source to me.
Github issue: https://github.com/facebook/react/issues/10191
React has been relicensed to MIT. https://code.facebook.com/posts/300798627056246/relicensing-react-jest-flow-and-immutable-js/.