Did John Calvin Miss The Mark? - Treating Our Neighbors

I came across this piece of his-story...John's that is. Did he feel pressured to respond in light of his role/responsibility? I am conducting a study on the adulterous woman (Jn. 8:1-11) and discovered that this pericope has shaped much of Christianity's position on marriage and the family (amidst the contention on its placement in the Johannine text):

Alleged adultery made John Calvin persecute vigorously Anne le Fret, his sister-in-law, who looked after their common household. Although he could procure no decisive proof of her guilt, he managed to arrange a divorce with the right o f remarriage (against the Roman tradition), and removed her from the house with loss o f her children. She was spared capital punishment, as she kept denying, despite seven rounds o f torture. Although Calvin’s first attempt in 1548 had failed, and his brother Antoine was forced to reconcile with Anne, the text o f Jn. 8:1-11 has apparently meant little to the case, which w as treated by these reformers as a clearcut ecclesiastical affair.

See Kingdom, R. Adultery and Divorce in Calvin 's Geneva, Cambridge Mass. Harvard U .P. 1995 p .71-98.