Please, no. Stop the JS framework insanity. There is zero room for this, it will benefit nobody, and just add static to already successful frameworks. If you disagree, just ask yourself whens the last time anybody said, "I think we need more variety in JS frameworks".
There isn't even an explanation on why they built this or released it, only that, "oh hey guys it's event driven". ASP.NET did this over a decade ago Twitter, but thanks for coming out.
Move over React and Angular, here's Flight? Learning another javascript web framework? I wasn't comfortable using Angular at a couple of projects for customers, before I was thrown into a React project where we've benn struggling with Flux. That being said, the more frameworks you learn, the easier it gets to learn new ones.