I strongly disagree with the claim that "React Is Much Simpler." React on its own may be simpler, but by the time you add libraries for routing, HTTP, dependency injection, date/currency formatting, animations, and all the other stuff that Angular provides out of the box, the complexity starts to look pretty similar.

Furthermore, because you have to rely on third-party libraries for all the features that React doesn't provide, you have to worry about separately keeping them all up-to-date. What if there's a critical bug fix in the latest version of your HTTP library, but it's only compatible with the latest version of React, which isn't compatible with the router version you're using? In my experience it takes a lot more time to keep dependencies up-to-date and working together with React than with Angular.