Agree with this. Although I’m gonna say it is not the single file per-se which is the winning technology here but the component scoped styles. When writing vanilla web components this can be accomplished with `this.attachShadow()`, and in Stencil you write an external stylesheet and reference it with a `styleUrl` in your `@Component` decorator.

In fact it is kind of nice to put your styles in another file if you have a designer on your team who is afraid to touch any files that don’t have the `.css` extension.