The Lutherans saw their movement as not having introduced any innovations but only correcting abuses

Inasmuch, then, as our churches dissent in no article of the faith from the Church Catholic, but only omit some abuses which are new, and which have been erroneously accepted by the corruption of the times, contrary to the intent of the Canons, we pray that Your Imperial Majesty would graciously hear both what has been changed, and what were the reasons why the people were not compelled to observe those abuses against their conscience.

Augsburg Confession
Article XXI.X

The unraveling onion of the Reformation criticism of tradition

Like many of the Protestant critics who followed him, Semler could claim to be following in the footsteps of Luther and the Reformation, and to be doing so with greater consistency than the political situation of the 16th century had permitted the first Protestant reformers themselves to do. The same kind of historical–critical scrutiny to which Luther and his fellow reformers had subjected to cherished traditions and doctrines of the medieval church, such as the claims of the Papacy or even the sacramental system, could and should be rolled back to the very first centuries of the history of the church. Even the first century, revered as “apostolic,” must not be beyond the reach of historical criticism.

Jaroslav Pelikan
Whose Bible Is It?
The Canon and the Critics