Most companies don't really need the majority of React's power. There is room for a low to mid level complexity library/framework to fill the space that the majority of sites really need (like, that brochureware site should be statically generated and needs none of what React offers and the site that deals with dozens of requests per minute can be greatly simplified). What we need is a low complexity tool that has a fantastic DX. Of the many projects that deal with this none has taken hold in the way that React has.