It really needs to be updated. As far as I can tell, it was just taken from Diplomacy. The only time that the word "titan" shows up is when it is talking about how capital ships (these titans) can push back culture. Heck, it does not even have pictures of the new capital ships.
Of course, this does not interfere with gameplay, but it is an issue nonetheless.
Edit: Mayhaps it will be updated once the Vasari are available?