There is no framework. Just simple JS calls and bindings to HTML with somebody defining REST or GraphQL backend. And some eye candy CSS. The point is that with ES7+ JS can be finally readable and not a spaghetti code monster so anyone can easily understand and extend any code.

It really sounds like you don’t have any need for a framework and so of course it doesn’t seem like you need it.

I was involved with some deep React apps that utilized all kinds of advanced patterns and I simply don't see the need for most apps I see around. React is neat if you have thousands of concurrent updates coming in all the time where dependency graph is a killer. But only a few companies need it - why then force this on all frontend devs by default? It's like with big data - let's push everything to Hadoop/Spark when our SQL database fits into 20MB etc.

There are a lot of sites that use react that don’t need it.

Some uses benefit from a good framework.

good luck with that