Good questions!
I know it's considered bad communication by answering a question WITH a question; but would there even BE any Protestants todays if church PRACTICE had stayed on church tradition's path?
**** without church tradition, how would we KNOW which books are canonical and which are not? for example, without church tradition why do you accept the Book of Hebrews as Scripture,****
If I remember my history, the Roman church rejected Hebrews but accepted Revelation.
The Greek church accepted Hebrews and rejected Revelation.
So in the final compilation of scriptures each agreed to allow both those books in the Bible.
So Church Tradition had nothing to do with these two books.