Go? Why not Rust or a safe language like SML? Personally, I'd much prefer Scheme for user apps.
I agree with you, but given the similarities of Go and Limbo, with the increasing love of system administrators to it, it seems an easier sell.
As for your SML hint, I leave here "Unix system programming in OCaml" :)
C replaced by Go, as Inferno replaced it with Limbo for userpace applications.