Calvin's Excommunicated Father

Just three pages into William Stacy Johnson's John Calvin:Reformer for the 21st Century, I have had a startling revelation. Gerard Calvin was excommunicated when his son John was 19 years old, dying two years later. What an impact this must have made on the young reformer. Calvin must have been destroyed by the church's graceless attitude. No wonder grace became suddenly free. Have we sought Calvin's conversion and ecclesiology in all the wrong places?