Nice article. To prove this point, I even built this entire app using only native Web Components: https://www.insnare.net/

It was a lot easier develop than with React and it feels a lot faster/less heavy. No bundling, no complex abstractions, no unexpected behaviors or hard-to-trace logic chains. It's not 'reactive' but IMO it's better; the attributeChangedCallback is more flexible. It's easy to create components which can be assembled and nested in a declarative way. A much more enjoyable development experience.