Am I missing something, or is what the article describes something that doesn't look that far from from React components, really, minus many of its benefits lik

Am I missing something, or is what the article describes something that doesn't look that far from from React components, really, minus many of its benefits like shadow dom, being reactive, JSX being easier than strings? So you render all this on the server, and then the client does what, or are is this only targeting static pages?