> responsible for taking Go Language, Docker and MongoDB from niche technologies to widespread mainstream enterprise adoption.

In terms of proliferating Go I think that statement is fair. spf13 is like brand name in open source.

I recall years back on GitHub, spf13 was like a name you were guaranteed to come across if you were sinking your teeth into Go. I ended up using cast / viper: https://github.com/tony/vcsync/commit/a76681b. (Not that I'm anything special at golang)