It is a very excellent book. I might add. He is attempting to build a movement of Rusyn-ism, claiming that it is a unique ethnicity and unrelated to Ukrainian. Ask any Rusyn in Slovakia who is aware of those changes, and they will tell you that it was done purposely so that they distance themselves from Ukrainians as much as possible. Complexity is the nature of Ukrainian history.
Regionalism is very important in Ukraine as are regional ideas and approaches to identity.
The simpler it all seems.