1. Sass is not as needed as it used to be (native CSS variables, PostCSS, CSS Modules, Radium, inline styles etc.). But of course many users prefer Sass. But S

1. Sass is not as needed as it used to be (native CSS variables, PostCSS, CSS Modules, Radium, inline styles etc.). But of course many users prefer Sass. But Sass in its CSS syntax (SCSS) is (if I'm correct) just super set of CSS. You can always start project using vanilla CSS and when project will grow, you can add Sass. There are two approaches to develop new projects: big design up front and YAGNI principle (you ain't gonna need it). I prefer YAGNI and I'm glad that Facebook generator is so minimal. But I don't know what they are planning to do with this project. I think this project would be a lot worse if they forced to use Sass(or Radium or any opinionated CSS solution). 2. code splitting? If I understand correctly it's Webpack feature needed mainly for production, not development. So why to add this on the very beginning of your project?