While we're talking about what it popularizes, there's also the sense of epistemic closure that I've never seen to the extent that I do in the Go community. You're right in that it doesn't bring anything new to the table; that's its developers' intent, but its fans have tried to turn it into some kind of revelation. Which it's not, of course, it's Java 1.1 with a somewhat nicer syntax. And that's not a crime, it's not unforgivable--but it's also nothing special, and by god am I so very tired of its partisans holding it up as the best thing since sliced bread because they don't know what the rest of the world looks like.
(This expressly acknowledges the--rather few, IMO--Go fans who do understand the rest of the world and use it for their own reasons; I think they're hurting themselves, but I respect the choice.)