The book claims to be a historical study but does not take into account the very real crimes of Nicholas II. He may not have ordered the shootings of Bloody Sunday. But I almost guarantee that no one working on this text knows about the 1912 Lena Massacre? (In which the army was sent to shut down a strike and fired upon the striking miners, killing hundreds...Nicholas' own mother Maria Feodorovna was a shareholder in the Lena Mining company.) No history of Russian colonialism/imperialism, labor history, etc is included in this book.
This is amateur hour historical analysis. Even if Nicky II was nice to his family personally this does not excuse the literal blood on his hands. Only drawing from apologetic sources on the Imperial Family, one that look only at their personalities, hobbies, home life, etc, does not scratch the surface of the real political reality. You cannot make saints out of a dynasty that profited off of human suffering.