In fact, a sense of the over-riding auctoritas of Tradition and Custom had not entirely disappeared from the three-volume The Celebration of Mass by J O'Connell, 1940 edition. He discussed customs 'praeter legem' ... beyond the law ... and goes on to explain that customs even 'contra legem' ... contrary to the law ... may become prescriptive. Apparently, the old Sacred Congregation of Rites was known to enforce usages which were contrary to the law!
Interestingly, O'Connell argues that "Popes in Constitutions that preface the liturgical books, while abolishing existing customs contrary to the rubrics of those books, do not prohibit future customs of this character".
This is particularly entertaining in view of the way that PF, at the end of Tc, tries to tie up his "abrogation" of earlier legislation and custom. (I wonder if S John Henry Newman's description of the C of E as "the House of Bondage" ought, in all fairness, to be transferreed to the Bergoglian Domus Sanctae Marthae.)
Incredibly, we live in times more restrictive and rigid than the 'rigid and archaic' decades before the Council! A Totally Tremendous Tyranny Time! It is remarkable how restrictive and dictatorial a peronist pope who is fuelled by a really stonking hatred of Tradition can manifest himself to be.
But I will conclude with some more of Dix.
"So far as the primitive bishop had any such right he had it not so much as bishop but as celebrant. When he ceased to be the normal celebrant it passed as a practical fact to other people. If any one were to say that from the sixth century to the eleventh it was habitually exercised much more by the copyists of liturgical MSS. than by bishops, it would not be easy to bring factual evidence to refute him. And in practice there is no doubt that it was exercised by the parish priest, 'doing the liturgy' for his flock under the guidance of tradition from such MSS. as he had, which he did not feel much scruple about adding to or altering with his own hand. ...
"However much ecclesiastical administrators like Innocent I and Charlemagne may have lamented the fact, the churches in the earlier ages did not desire uniformity. And those who have taken part with any understanding in the worship of provincial and country churches in France and Spain and Italy and Germany--or even in the parish churches of England--may wonder whether they really care very much about it now."