> This is some strange reasoning that I have yet to seen myself. If you can do the hovers states/drop down menus in CSS, why not do them in CSS, even if you're using React? Seems to be blaming something on a library that the library has no care about in the first place (which to be frank, seems relatively common in web dev circles).

Let's all be honest, that's complete laziness or lack of knowledge by the developer.

> And holy guacamoly, how do you end up with this?! Seems that something was surely wrong in the compilation options, forgetting to mangle names or something, missing dead-tree elimination maybe?

Maybe sourcemapping?