This thread is not (or should not) be about what Brownson, Ladislaus or I thinks about BOD. Who cares? We aren’t the Church.
It’s also not about what Pius XII told some midwives at a luncheon or what one of the hundreds of different catechisms mentioned in passing.
This topic should be about what the Church authoritatively, definitively, dogmatically, under-pain-of-sin, and unless-you-believe-it-you-won’t-be-saved, about BOD.
Answer: There’s nothing definitive, dogmatic or under-pain-of-sin teaching about BOD.
This is the bottom line. Pius XII opining in front of some midwives is not Universal Magisterium, nor was a letter written by Innocent II/III which he based on the "authority" of Augustine and Ambrose. We have to recall that in a very similiar letter (to the one in which he mentions BoD), he wrote that consecration at Mass is valid if the priest even thinks the words of consecration, for which St. Thomas Aquinas correctly rebuked him.
Really the only thing approaching authoritative Magisterium (vs. opining as a private Doctor) would be Trent. That's it. It's clear to me that Trent was not teaching BoD, although it didn't definitively close the door on the matter either.
There are two very serious dogmatic teachings of the Church that strongly militate against BoD.
1) Pope St. Siricius' decree.
2) Dogmatic EENS definition stating that there's no salvation outside the Church "of the faithful". Msgr. Fenton even admits that the term
fideles positively excludes Catechumens.
Also, if you believe Trent was teaching BoD, BoB must be rejected as having any independent existence and as not reducing to BoB, and you must reject the notion that temporal punishment can remain after justificaton by BoD. In fact, that same Pope Innocent letter declares that those saved by BoD rush to heaven without delay (i.e. are regenerated). But no BoDer believes these things. They only accept Trent when it's convenient for them to do so. Ironically, St. Alphonsus accuses himself of heresy with his temporal punishment theory regarding BoD, since he said that a Pope Innocent letter made BoD dogma. Well, Pope Innocent also said that all temporal punishment is removed.
BoD is an absolute hot mess, which is clear evidence that the Church has never defined anything of the sort.
God has allowed this opinion to flourish because witout BoD theory there could never have been Vatican II and the false ecclesiology of Vatican II on which all the Vatican II errors rest. And God willed to allow this Crisis.