In my most humble opinion, Pope Benedict’s hermeneutic of continuity which he enunciated in a very cogent way at his Christmas talk many years ago to the cardinals of the Roman Curia, was the centerpiece of is papacy and a way forward to heal the schism between the Church prior to Vatican II and the Church after Vatican II.
I embraced and embrace Pope Benedict’s theology and also that he wasn’t a dictator about it, which in hindsight may have been a mistake, but proposed rather than imposed his papal leadership.
A direct consequence of the theology of the hermeneutics of continuity was Summorum Pontificum and the letter to the world’s bishops that accompanied it.
The letter, in particular, was/is a good teaching devise for the theology it contains.
But now, and with the signature of the reigning pope, Pope Francis has completely destroyed the theological magisterium that Pope Benedict brought to his papacy and to the Church Universal.
What I was able to teach about the two practiced forms of the one Roman Rite, was possible to teach with papal support on July 15, 2021 but I was not able to teach the very same thing the next day, July 16th. A whole corpus of papal teachings by one pope, now retired or emeritus, was completely repudiated by the current reigning pope, Pope Francis.
And apart from anyone’s affection for the older form of the Mass or even the theology of Vatican II with the hermeneutics of continuity that preceded the Council, the authority of the papacy and the entire Magisterium of the Church is weakened by the current pope because the next pope can undo any and everything that the previous pope said and promulgated or any other pope or Council of the Church.
That’s the scandal of the Motu Proprio of the current reigning pope—he just pulled the rug out from underneath the entire papacy and its magisterium.