I know nothing about the parent comment but to be fair, he has only 12 commits with about 600 total line changes (additions and deletions) which places him 50th on the contributor list. That doesn't mean much in regards to spf13's involvement.
This is very similar to Hugo http://gohugo.io, my current website solution. The content organization is virtually identical. The approach of viewing a website as more than a blog is the same. Hugo also benefits from tons of themes, a large community and a ton of additional features.
Did you not read the post?
The post is full of evidence of the things that he did or the team that he led did that drove Go's growth.
He definitely was a major contributor to Go's widespread adoption both as an OSS contributor and as a project leader.