This article comes across as really cynical and entirely lacking in the kind of rigor and detail I have previously found on highscalability. Spanner is really mind-blowingly cool tech. I thought this article was much more informative and worth the time to read: http://news.ycombinator.com/item?id=4562546
I think the notes about transactions are quite valid as the point of a HS post. However the author didn't have anything else to add ("I look forward to more insightful commentary. There’s a lot to make sense of") yet felt the need to keep writing, and filled the article with style and attitude rather than substance.