[tubthumper8]

I think it's not so much about interpreted vs. compiled but more about the delivery of client code to the user - every time any user visits any website the browser may have to download the code (if not cached), then parse it, then execute. The less code that needs to be shipped, the faster time to interactivity and also less bandwidth usage.

Some bundles may still be big if teams don't use it, and some libraries are not structured in a way that facilitates dead code elimination.

Consider libraries that use `class`, such as moment.js, all functionality is made available as methods on the Moment class. If you only use 1 method, you still have to bring in the whole class. Whereas if a library is structured as free functions and you only use one, then only that gets included and the rest is eliminated.