[Lewisham]

To paraphrase Big Lebowski: "Well, like, that's just Google's opinion, man."

Of course Go is already in production at Google because the Go team designed it to fit particular pain points that Google was having, so it's going to have the libraries that are needed to solve those problems. The question is whether the current libraries are there to solve your problems, and, as others noted, it's not that cut-and-dried.