I don't think it's about Go itself (as if that makes the software better), but moreso that if you're a Go* developer, you may find the source of such a tool int

I don't think it's about Go itself (as if that makes the software better), but moreso that if you're a Go* developer, you may find the source of such a tool interesting - while Go seems particularly well-suited to writing system utils, perhaps there are parts of the codebase that seem like they may be difficult to implement in the language. Additionally, if the source is in a language one is familiar with, one may find that codebase leading to a deeper understanding of the tool itself. * Go here being a proxy for any language. The same goes for Rust, Haskell, Javascript, etc - this trend certainly isn't unique to Go.