I think it's good that Go, among other well-made toolchains, brought attention to importance of good CLI UX. But it's not something that is unique to Go:

I think it's good that Go, among other well-made toolchains, brought attention to importance of good CLI UX. But it's not something that is unique to Go: dotnet new web dotnet run curl localhost:5050 also 'dotnet watch' for hot-reload.