Certainly Go lacks some features (generics) which are more-or-less standard in other large languages, but I think that's a sacrifice to the code quality gods (not that you can't write shit code in Go). To use another metaphor: if C++ and Java are motorcycles, Go is more like a bicycle. Smaller, easier to maintain, and more portable, but there are times when you might really wish you had a motor.
I think a common sense standpoint would actually prove the opposite for some facts of Go: tons of unnecessary duplication due to a lack of generics is bound to lead to bugs, hard-to-maintain code due to sheer volume.
