The ceremony is a moral aberration that presumes culpability for acts committed in the past. Anyone living today is not morally responsible for the unjust acts of their ancestors. If this were true I am sure we could find a list of "evils" committed by the ancestors of the blacks  that are being told how bad the Jesuits were/are. 

 Yes a number of Jesuits betrayed the name of Jesus, a long time ago, but WE have not.  We can not ask for forgiveness for what the dead have done, and the decedents can not give forgiveness. This is funny theology with funny consequences, and has nothing to do with  Catholic morality.  

One consequence is that it undermines the idea that the individual is saved from sin. If I am responsible for all the sins of my (human) race,  one wonders if I can ever be forgiven. Christ frees us from the sins of the past and urges us to go forth in a life of grace. This is spiritual scruples on steroids. Mea culpa that never ends.