He isn't talking about all architects, architecture astronauts are specifically the kind of architect who no longer writes code. The guy who wrote node.js clearly still coded when he wrote it, and so on, so your examples aren't architecture astronauts.

Edit: And if we take your examples, the Architecture Astronaut would be the person who says "We should use node.js in our backend, it will solve all our problems!", not the person who wrote node.js.