The metaphor is apt. JS is a terrible terrible language (with some nice features). It's very easy to do the wrong thing. It's very hard to organize large projec

The metaphor is apt. JS is a terrible terrible language (with some nice features). It's very easy to do the wrong thing. It's very hard to organize large projects and it needs higher level frameworks to be usable and portable. And with projects like asm.js it will be a necessity (not an option) to write in a higher-level language in order to generate performant JS web apps. So the "raw metal" metaphor is apt.