I was surprised by your conclusion. You’re not really explaining how React is a suitable solution for “universal apps”, or performance issues of Angular.

I’ve met fellow developers that doesn’t know about one-way binding. or how to manage watchers then complain about performance problems, or how they’re not able to render 10000 rows — I always ask why .

Angular 1.x and it’s community has matured enough, there is consensus about best practices. You get productivity out of the box, and it’s up to you to write a performant app.