Fair enough -- it's not like it's completely opaque. But when I start a project and see there is no webpack.config.js in the project root, I feel the opposite of relief.

For example, if there isn't a config file, it's usually because there are more than one. Or, even worse, the config is dynamically generated. A build process like that is much harder for me to fully understand than one with a simple webpack.config.js.

However, this may be biased, as it's coming from the perspective of someone who already "knows Webpack".