Yes the current game guide and FAQ on the site are both woefully out of date often to the point of being misleading.
Of the seven categories covered in the game guide only two appear to contain the correct information (contracts and land management) all the others are out of date. Either smaller thing like suggesting talents are still linked to souls, or that guilds can patent an item to major changes such as NTCs can be used outside exposition and your heir will be in the world and at risk from attack.
The other issue is that where things have changed since the Developers Journal and there is no information about it at all. For example is there still a scholarship skill in this game or is teaching solely based on the skill you are trying to teach? I remember conversations about it being removed but can find nothing official and now there are communities investing time in building organisations based on a feature that may or may not have been removed 10 months ago.
The FAQ also needs a look through. It mentions skill atrophy on death, is not clear about the current confirmed servers, mentions Influence Points a lot, and confirms the game will not launch in 2015!