I would agree that Go is rarely the best choice for particular problem, but I've found it to be a good choice for "enterprise development" for two reasons. It's easily reviewable by others with varying levels of skill and familiarity with the project, and it doesn't have a complicated deployment story.
At work, I've seen Go used primarily in projects that would have previously been written in Python or Ruby.
At work, I've seen Go used primarily in projects that would have previously been written in Python or Ruby.