A very insightful article! It's interesting to think of NoSQL as a "simpler" notation that opens up more powerful and flexible ways of representing data. I agree with the point of view that "not only SQL" is a monicker that emerges from the relational mindset, whereas NoSQL in fact represents a new and much broader mindset.
I think this article is a philosophical answer to those who complain that NoSQL is too simplistic, that NoSQL databases have too few data manipulation features, etc. These claims may be true in the tactical sense. But in the broader sense NoSQL is not only a technical approach to enable scalability and high throughput. It's a way to talk about data in a simpler language, which opens up new and much more powerful models for repesenting information. It's an intellectual revolution - not a technical optimization. Thanks to Henrique very much for sharing.
-- Sarah S.