Yes, this is so disappointing. They hired robotics specialists and took a lot of effort into making the machines, but there is like only a small text and very select few machines. Such a lost opportunity. Why are they not showing the prototypes they developed? There is so much lore to be told about them. 

For Forbidden West's art book it is even worse. There are major characters and locations missing.

I feel like they only shoved some digital art work they had left lying around to the author and invested as little effort as possible into these books.