Augustinian,
That table of theological notes comes from a random 50's priest. That doesn't make it the teaching of the Church.
It comes from a theology manual. That gives it more weight than either one of our opinions here.
Besides, the issue here isn't whether it's a regular mortal sin to deny Baptism of Desire (and of course it's far from a sin), it's whether or not the Council of Trent taught Baptism of Desire, making BoD heretical to deny.
Besides, even if it were up to three or four grades lower than "Sent.fidei prox", it would still be mortally sinful to deny. In Fr.Feeney's case, it went to the level of the sin of schism.
Being unanimous or nearly unanimous since
The issue again is that it is your word against theirs. Which has more weight? All the Councils you cite were known to them as well.
Gregory, I'm rather confused as to what your opinion is. It seemed to have started out in support of Baptism of Desire, and then evolved to a complete relapse into Fr.Feeney's doctrine.
As for Pope St.Gregory, if he did make it dogmatic, then St.Alphonsus was a heretic. The same for Florence. You will never find a Saint, especially a theologian, still less a Doctor, who holds a position the Church has already condemned.
In fact, isn't that the basis for sedevacantism? Using sedevacantist logic, if the Church had already condemned it, then Alphonsus wasn't a Saint, and therefore the Church that beatified him wasn't the Catholic Church. Absurd, right? But there you have it.
What then was he talking about? Firstly, that baptism contains the merits of Christ's blood which washes away our sins, and in which the Spirit of God is bestowed upon the faithful soul.
As to martyrdom, you have it backward. As a Latin Father, I think it may have been Saint Augustine or Ambrose said, "Martyrdom has all the sacramental virtue of baptism". That is the basis of baptism by blood. So there is no separation, and martyrdom also possesses the fruits of the sacrament.
Your interpretation of Trent is also mistaken. In the justified, nothing at all is lacking unto eternal life and it is heresy to say otherwise. Again, the analogy is perfect contrition and penance. True contrition, though immediately efficacious, includes the resolve to go to confession as soon as this is possible. Obviously, it doesn't apply if approach to the sacrament is physically or morally impossible.
Your syllogism is an unfortunate oversimplification. What if God wills to save men in a land where the Gospel has never been preached and the Church never established through an interior enlightenment of Himself? Would anyone dare say He was bound in any way to reveal His hidden ways to man? No, He is not and it is unlawful for us to inquire into the knowledge of those things the good God wishes to keep to Himself.
Consider the case of a native American during the Middle Ages who was open to grace, sought the truth and observed the natural law. As a matter of fact, such a person would have died not outside the Church but rather in the friendship of God, and united to the soul of the Church, if he fulfilled the conditions Bl.Pope Pius IX laid out one and a half centuries ago.
There are, of course, those who are struggling with invincible ignorance about our most holy religion. Sincerely observing the natural law and its precepts inscribed by God on all hearts and ready to obey God, they live honest lives and are able to attain eternal life by the efficacious virtue of divine light and grace. Because God knows, searches and clearly understands the minds, hearts, thoughts, and nature of all, his supreme kindness and clemency do not permit anyone at all who is not guilty of deliberate sin to suffer eternal punishments.
Thomas Kempis rightly says,
My child, beware of discussing high matters and God's hidden judgments ... Such things often breed strife and useless contentions. They nourish pride and vainglory, whence arise envy and quarrels ... A desire to know and pry into such matters brings forth no fruit.
and
"For, it must be held by faith that outside the Apostolic Roman Church, no one can be saved; that this is the only ark of salvation; that he who shall not have entered therein will perish in the flood; but, on the other hand, it is necessary to hold for certain that they who labor in ignorance of the true religion, if this ignorance is invincible, will not be held guilty of this in the eyes of God.
Now, in truth, who would arrogate so much to himself as to mark the limits of such an ignorance, because of the nature and variety of peoples, regions, innate dispositions, and of so many other things? For, in truth, when released from these corporeal chains 'we shall see God as He is' (1 John 3.2), we shall understand perfectly by how close and beautiful a bond divine mercy and justice are united.
But as long as we are on earth, weighed down by this mortal mass which blunts the soul, let us hold most firmly that, in accordance with Catholic teaching, there is "one God, one faith, one baptism" (Eph. 4.5); it is unlawful to proceed further in inquiry.