What is the author's style in No Future Without Forgiveness by Desmond Tutu?

Tutu is also an ardent advocate of grace and forgiveness over and above revenge and retribution. While many criticize him for downplaying the importance of justice, Tutu argues that he is serving a higher set of values that more effectively promote the common good and the gospel of love than retributive justice that would likely tear South Africa apart if it was implemented.