The article is fucking crazy.

Web apps and software in general should be about separations of concerns not technologies.

When in React you define the structure + the events your component can receive you are wrapping up that concern nicely in a component.

And BY NO MEANS React is solving any data modeling problem, conversely, they have left that part out of the scope of React and some REALLY NICE options have come out. The most famous is Redux.

And by the way React is not a framework is just a library.