I'm curious as to what toolchain he thinks he needs? I write Go all day. I don't have a "toolchain" unless you count version control and go build/go get.
As a full-stack web developer, I rely heavily on gulp and Bower (as mentioned in the article), as well as a few other small utilities. I know I wouldn't have to give those up by switching to Go, but at that point, if every dev on the project already needs to have Node installed, why not just use Node?