Meh, this blog post is a rather subjective rant. I can offer the opposite opinion, although I'm not sure that's helpful. The more I use Go, the more I like it. I'm very productive with it, similar to -- though not quite on a par yet -- the productivity I had when I was programming in REALBasic. Most of the benefits of Go result from the tooling and the availability of 3rd party, open source libraries with permissive licenses that are "good enough" for my purposes. I could probably also use Python instead and benefit from even more 3rd party support, but there would also be downsides to it. I appreciate Go's compact executables and easy deployment.

Quite honestly, in what concerns choices of languages, my experience is that it's not so much the language per se that counts, but rather the tooling, developer community, and the availability of 3rd-party libraries.