While an interesting article in its own right, it has nothing to do with node.js, except that this happens to be a criticism of the way V8 works, which node.js is built on. However, they may not be using things in the same way he is, or there could be mitigating circumstances which make it possible for node.js to pull this off. (I don't know anything about node.js internals, I just know this article isn't about it, as the title indicates.)

Edit: This was written when the title was "The author of Nginx on node.js and why V8 is not suitable for web servers". It's since been changed.