As someone who knows their way around Erlang, it needs some work for more 'average joe' programmers to get much done with it. I'm not talking about the syntax, but some set of libraries or a framework or something that gets people up and running quickly. Chicago Boss is interesting, but it's not very Erlangy (it uses compiler magic).

Edit: that said, a big company would certainly have the resources to make Erlang work well for web development, and, yes, it's way more solid than Node.js from an architectural point of view.