I think you are on to something. When you have hundreds of (front end) developers working on the same UI, refactoring becomes more of a people management proble

I think you are on to something. When you have hundreds of (front end) developers working on the same UI, refactoring becomes more of a people management problem then a programming problem. And something like React would help in such circumstances. So I can imagine how it would be useful for Facebook. But not the average small team or solo dev.