Father Muller already refuted anything you may think you may have read into Pius IX's words well before you were even born.
No, you are the one accusing Pope Pius IX for teaching a heresy he never taught, just like Muller said.
I find it funny how you quote a Fr. Muller to support your opposition of BOD, as if anyone knows who he is, and as if what he says holds any weight next to all the quotes posted on baptismofdesire.com. FYI - The quotes supporting BOD/BOB on baptismofdesire.com span over 1800 years of the Church and are from the following:
Cyprian Epistle LXXII (3rd Century)
Church Father Cyprian (3rd Century)
Church Father Tertullian (3rd Century)
St. Cyril of Jerusalem (4th Century)
St. John Chrystostome (4th Century)
St. Ambrose, a Doctor of the Church (4th Century)
Pope Innocent III in letter "Apostolicam Sedem" to the Bishop of Cremona (12th Century)
St. Thomas Aquinas (Summa Theologica – 13th century)
St. Catherine of Sienna (14th Century)
Council of Trent (16th century)
Catechism of the Council of Trent (16th century)
St. Alphonsus Ligouri (Moral Theology Manual - 18th century)
Pope Pius IX (19th century)
Baltimore Catechism (19th century)
St. Pope Pius X (early 20th century)
St. Pope Pius X (early 20th century)
Catholic Encyclopedia (~1913): The Baptism of Desire
Canon Law (1917)
A Catholic Dictionary (1931-1951)
Pope Pius XII, Address to the Congress of the Italian Catholic Association of Midwives (1951)
Now you come along Mortalium, and give us quotes from Fr. Muller to try and oppose all of the above sources???? Talk about absurdity.
Think about it people; whenever we are all discussing other doctrinal issues in the Church, we are all typically content with a quote from a Pope or theologian to lay a matter to rest. However with BOB/BOD, quotes from the massive list of trustworthy Church references above is presented, and the Feeneyites look the other way for
all of it, and remain obstinate to the end. There is no way any Feeneyite can claim innocence at their judgment for such blatant obstinacy.