[shados]

I was under the impression that was the idea behind the new webpack cli (though I haven't tried it).

The main issue is generally that there isn't much of a consensus on toolchain. Are you using vanilla ES6 or TypeScript? If the former, are you sticking to the standard or using class properties and object spread? Are you also adding non-stage3 crap like bind operator and decorators?

For CSS, are you using styled components or Sass? Maybe you're using PostCSS? If so, with which plugins?

Are you doing codesplitting? If so, how? Are you using a DLL plugin for your vendor stuff? Oh, and how would you like to handle far future caching?

For a trivial app there probably can be a default, but unlike something like ESLint, any app that plans on living more than a little bit needs to answer all these questions and the answer is not obvious.

Generally you could stick with some defaults that represent a majority opinion, but right now its so close to 50/50, it's hard. Still could be done though.