I got the compendium for the painting guide. When they spoke about it they said the painting would be for all miniatures in the Kickstarter. Not the add-ons. Now I see that it only has the core painting minatures. Did anyone else notice this? Looking to find when they said this.
from just skimming through, it's a nice introduction including an overview of standard techniques and the list of used colors.
So, while the step by step examples are from the core as Jorge mentioned, it's a good starter. Besides, as probably an overall similar style is the objective anyhow, it should be in most cases rather straight forward to use the provided examples and the artwork from the boxes/cards/updates to derive similar results for the rest of the set.
Personally, I wonder if the wide range of used color brands is just because of the authors personal preference/availability, as hinted at in the book, or if from the publishers side it was also favoured to not get into marketing for a single brand.