> HMR works well
Have you run into problems with hot reloading of stylesheets? Seems like the kind of problem that should be solved by now (for reference, LiveReload was doing CSS injection back in 2011, and maybe some other tool even earlier: https://web.archive.org/web/20110428025941/https://github.co...)
Few quick reasons off the top of my head. - HMR works well - Theming, variables with things like ternary - Code reuse is better (Especially with theming) - Component can contain everything in one file - Extend other components easily - Better developer work flow - Contained class names