The Go community is quite deep into it being the first into fast compilers, co-routines, slices, static compilation, and rich standard libraries.

The commenter said more than that.

"In general, Go tooling makes up for a lot of the intrinsic issues with the language, and even shines as best in class in some cases (like coverage, and perhaps tracing too). All out of the box, and improving with every release."

Best in class?!?