You can’t really have it more than one way.
Many people over the course of 3 or 4 councils, and many other supporting people, played a role in dealing with some problems which existed in the Catholic Church. The vast majority were not excommunicated or killed in some ghastly way.
And it’s not like the Protestants never did anything wrong; these types of actions were not rare in those days and were used by the government as well as (to a lesser extent) both Protestants and Catholic officials.
Oh?