[eigenhombre]

Not picking sides here (though disclosure: I use and like FP techniques/tools/languages/libraries).

Go provides a set of nice features (fast startup, easy cross-platform building, great tooling, good package management) that can be hard to come by with other languages. It is not unreasonable to want to have your cake (all of the above features) and eat it too (occasionally use functional idioms in addition to the usual imperative ones).

For this reason I try to keep abreast of the various FP libraries in Go, though I have yet to use one in anger.