Yes its powerful, primarily because the acting is powerful and effective. Anyone in the cast would deserve an acting award.
There are script problems. Too many characters and too many individual stories crammed into 2 hours. Some characters have little or no character development. Big mistake to concentrate on media-circus. The media is notoriously shallow and insincere, and it contrasts sharply with the otherwise deep tone of this film. Perp walks and media rabble on the sidewalks will work fine in the Martha Stewart trial movie, but it is way overemphasized here where it seems silly and unnecessary. Probably the writers were trying to show the "American-ness" of the situation but if so they weren't very successful.
Danson is great at conveying the essence of the legal aspect. So good that we are reminded that the essence is all we need. Legal detail is great in a Courtroom Drama but that is not what we expect here. Also, you feel like some of the characters are Courtroom Drama-style "witnesses" rather than human beings. A movie with such spiritual aspects should show each character as a human being.
Gentle and dignified portrayal of the late Pope. Seems the rest of the Catholic world could not comprehend the depravity and the generally different nature of American society and of this particular monstrous problem.