>To understands why Go is the way it is you need to know why it came to exist in the first place: "The goals of the Go project were to eliminate the slowness and clumsiness of software development at Google, and thereby to make the process more productive and scalable. The language was designed by and for people who write—and read and debug and maintain—large software systems. source"

The problem with this idea is that, for the exact same goals, there could be a much better design for the language and much better implementation of various details.

You don't need to be Haskell or anything. Just Go + generics for example would result in a much cleaner language (no special casing for things like "make" for example), a vastly improved code library and data structures story, etc. This horse has of course been beaten to death (including by people working extensively with Go, so it's not like some "outsider's misconception" as some dismiss it).

If Go succeeds is because noone else with the same kind of visibility and resources tried to compete in this space (easy concurrency, static builds, fast compiles, static, fast-ish, decent batteries included etc).

You have e.g. Rust which is incomplete and too complex, Nim which is too niche, from very small vendor (a guy) and has some bizarro ideas, and that's pretty much it. That said, Swift might make a dent in this area when its Open Sourced if it has nice tooling.