There is really no reason to step back.

Yes, various groups in the East, and particularly the reformers of the 16th century, adopt versions of what you propose, by necessity of course.

The Church, including at the Vatican II Council, rejected those interpretations and in fact has strongly restated the view of the ordinary magisterium which I reiterated.

The Church considers Scripture and Tradition as the two pillars of revelation, and I am not going to dispute that. I have no reason to as a Catholic.