I do believe marketing has something to do with it. I don't believe a random Google employee is allowed to disclose stuff about their infra permission is granted. This is not a bad thing mind you. Google is merely trying to win minds in the most friendly way possible.

Neither did I said that this was a 'major' differentiator between Go and D. Just 'a' differentiator and not a major one at that.

I have become slightly myopic with regard to the little announcements. I'm confusing it with announcements like Bitly's: http://word.bitly.com/post/29550171827/go-go-gadget or Cloudflare's: http://blog.cloudflare.com/cacheing-the-uncacheable-cloudfla.... But the point still stands, I see more of these posts related to Go than posts related to D (or Clojure/Scala/Rust/...).