For me, a big draw of web components is that there's no `npm install` needed. I prefer to ship my components as plain JS files that can either be hot linked from a CDN or downloaded and served locally. Call me paranoid but I just don't fully trust node modules to be clean of bloat and spyware and I just don't want to have to regularly deal with updating them. I'd prefer to download a web component's static JS file a single time, read through it, and forget it. Maybe down the line I might revisit the source for the component as part of standard maintenance.
For example, I made a simple like button component[1]. Later, my friend made a cool component for showing a burst of emoji confetti[2]. I decided to optionally pull it in if an attribute was set on the like component. I downloaded his source and hosted from my own domain. However, there was actually a bug in his code that caused the confetti to "rain" if you spammed the like button a few times quickly. He fixed that, but I actually kind of liked it so I just didn't update the source for the confetti component.
[1]: https://catskull.net/likes [2]: https://github.com/samwarnick/confetti-drop