Im sorry but you make it sound like everybody that does rails is a perfect programmer. Rails itself has changed over the years and if you look at an app from years ago im quite sure it will be very different then a current rails app. So again this is just not an appropriate comparison.
I don't think they are perfect programmers. Heck, I use several languages and frameworks, whatever is right for the project. Knowing a language isn't a perfect programmer (we all know that). And to your point, that was the comparison I would make. Node is young so there is a lack of experience with it.
