How does that improve things for end users? End users generally don't know or care about React.
They don't need to know. React is fast and good at managing state. Developers love it, and can make smooth, performant websites with it. It's not the customers who typically choose the framework, they just want a good website.
They can also make them without React and React is one of the heaviest of current generation of client side front end tools, by itself. Without a router. Without an additional state library like Redux. Un-code-split-able. So what's extra good about React for users that justifies "taxing" users with React?
Kinda playing devil's advocate here, since I do think there are use cases that React is the best choice for. I just also think it's used way too much when it's not.
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.