No MySQL won many years ago. Every shared hosting provider uses the LAMP stack. And PostgreSQL has a pretty average scalability story. It lacks the simplicity of MongoDB or the flexibility of Cassandra or HBase. It needs a lot of work.
I wouldn't exactly call that winning. It's like saying that Justin Bieber won because he's so popular. The article seems to focus on features rather than popularity. Yes, MySQL will be used mostly by amateurs for a long time, because for all it's flaws it somewhat compensates with ease of usability. I as a professional however will celebrate the day my company finally finishes the move from MySQL to PostgreSQL.
