I thought the letter was pretty solid, as far as it went.
It just didn’t go far enough (eg., several implications would seem to follow from what it did say, but Fr. didn’t go into any of them).
As others have noted, no references to Lefebvre, or how this MP affects the ralliement of the SSPX. No tip of the hat to the Resistance or Williamson for saving the SSPX.
All that said, it’s clear that Fr. P is 3 notches to the right of +Fellay (who no longer would speak of a conciliar religion opposing a Catholic religion, or of churchmen forsaking the salvific mission of the Church for a humanist one, or of the conciliar ecclesiology representing a rupture with the preconciliar ecclesiology, etc.).
That was all forbidden under +Fellay.
Pretty obvious to me that he was greatly influenced by Fr. Alvaro Calderon while in Argentina, as he notes humanism as the root problem of the Council, just as Calderon does in “Prometheus.”
What I want to see is whether, now that the accord is out of reach, will the branding muzzle come off?
If not, it will prove the Non Possumus assessment correct.