Maybe they don't want to force their users to download several MB of framework libraries in order to use their website.
DOM manipulation is perfectly fine for interacting with styled documents, the web's forté. If your website amounts to a set of configuration forms and a blog then you probably don't need React.
DOM manipulation is perfectly fine for interacting with styled documents, the web's forté. If your website amounts to a set of configuration forms and a blog then you probably don't need React.