You clearly have an axe to grind, and I'm not particularly interested in proselytizing. If you don't find the Declarative Shadow DOM useful, that's fine!
The example I was responding to was using the Declarative Shadow DOM. My comment was intended to point out the simple fact that the imperative component definition the author was complaining about is superfluous, meaning you can safely remove that entire script from the example.
I'm so fascinated by the few people online who show up to anything web component related just to flame and complain. It's always the same things too.
DSD is useful for SSRing web components, which allows them to render and work without JS. But honestly, I don't get the obsession with doing stuff without JS, it's part of the html/css/js trifecta.
It's a pipe dream that doesn't work in practice. Because on its own declarative shadow dom is useless.