Hi, Bluegoat,
I really was not looking at it in the way you mentioned. My guess is, like Ecclesiastes 1:9 tells us, “Nothing is new under the sun…”. So, for example as I consider it, it appears that Arianism (Christ is not God) is still with us today in various forms albeit going by other labels.
The POV of the Reformers is rather unique, in my view. There had been multiple scandals in the Catholic Church prior to the 16th Century - yet no revolt as was witnessed beginning with Luther. The Western Schism (1378 - 1417) was quite devisive and at one time there were three men claiming to be Pope (
newadvent.org/cathen/13539a.htm)
Hus, Luther, Calvin and others could have looked at the actual reforms accomplished by St. Catherine of Siena if they were truly interested in a role model. Unfortunately, they chose to revolt.
Additionally, there is a 1500 year history of:
1.) Apostolic Tradition
2.) Seven Sacraments - all physical and all giving God’s Grace
3.) A recognized hierarchy
For the most part, Protestantism broke for these three items (Anglicanism is a bit different in this regard) and created - brand new - their own way of doing things.
The idea of, “You are not doing it right, and I do not like what you are doing (scandals of selling indulgences, etc.) so, I will take over” is what a political coup is all about. This, too, is novel thinking for a church.
In my opinion, there is enough evidence to say that the main thrust of Protestant belief (Grace Alone, Scripture Alone, Private Interpretation of Scripture, etc.) did not have a long history at all. The 16th Century can be correctly identified as the not only the beginning of the Protestant Revolt but also Protestant thought as they set about developing their own unique traditions of men.
Hopefully, this explaination makes more sense, even though it is in opposition to what you presented.
God bless