An interesting article and it does seem like people rushed to embrace NoSQL and are now trying to force it into some kind of consistency after the event - not a bad thing, incidentally - there's a lot of interesting work here (Vector clocks, CRDTs, etc.).
One thing that surprised me though was the lack of a key player: Amazon. Their Dynamo paper was hugely significant and as a company they use eventually consistent stores for a whole swathe of products at scale.
Why mention Facebook and Google but omit this other major player, especially are their experiences tell a different story.