I'm okay with an overall design that allows people to plugin the parts they need in order to be able to generically support a compile-to-javascript language, but to bake in support for one singular solution because its popular is simply bad engineering.

small modules allow library authors to become lazy. Why include that six-line helper function when you can do a one-line `require`?

These are all things that make your life as a library author easier.

I think I know why: it’s because the small modules philosophy favours library authors (like Sindre) at the ultimate expense of library users.