The only way for BOD to really exist is for God to positively will for people to die before receiving the sacrament. We can only speculate why:
The person would have ended in hell later in life (God foreknew that the person was not of the predestined) and God had mercy on him, as sacramentally baptized Catholics suffer the greatest torments of all humanity in hell.
Receiving baptism of desire sends a person to the higher reaches of hell of the least torments, almost like a bad limbo of the patriarchs. There are different degrees of torments in Hell.
Note the two extremes of Hell, the worst torments for baptized Catholics and the least could be like a bad Limbo of the Patriarchs.
From Mystical City of God , by Sister Mary of Agreda.
537. Seeing him (Judas) thus beside himself Lucifer inspired him with the thought of hunting up the priests, returning to them the money and confessing his sin. This Judas hastened to do, and he loudly shouted at them those words: "I have sinned, betraying innocent blood!" (Matth. 27, 4). But they, not less hardened, answered that he should have seen to that before. The intention of the demon was to hinder the death of Christ if possible, for reasons already given and yet to be given (No. 419). This repulse of the priests, so full of impious cruelty, took away all hope from Judas and he persuaded himself that it was impossible to hinder the death of his Master. So thought also the demon, although later on he made more efforts to forestall it through Pilate. But as Judas could be of no more use to him for his purpose, he augmented his distress and despair, persuading him that in order to avoid severer punishments he must end his life. Judas yielded to this terrible deceit, and rushing forth from the city, hung himself on a dried-out figtree (Matth. 27, 5). Thus he that was the murderer of his Creator, became also his own murderer. This happened on Friday at twelve o'clock, three hours before our Savior died. It was not becoming that his death and the consummation of our Redemption should coincide too closely with the execrable end of the traitorous disciple, who hated him with fiercest malice.
538. The demons at once took possession of the soul of Judas and brought it down to hell. His entrails burst from the body hanging upon the tree (Acts 1, 18). All that saw this stupendous pimishment of the perfidious and malicious disciple for his treason, were filled with astonishment and dread. The body remained hanging by the neck for three days, exposed to the view of the public. During that time the Jews attempted to take it down f rom the tree and to bury it in secret, for it was a sight apt to cause great confusion to the pharisees and priests, who could not refute such a testimony of his wickedness. But no efforts of theirs sufficed to drag or separate the body from its position on the tree until three days had passed, when, according to the dispensation of divine justice, the demons themselves snatched the body from the tree and brought it to his soul, in order that both might suffer eternal punishment in the profoundest abyss of hell. Since what I have been made to know of the pains and chastisements of Judas, is worthy of fear-inspiring attention, I will according to command reveal what has been shown me concerning it. Among the obscure caverns of the infernal prisons was a very large one, arranged for more horrible chastisements than the others, and which was still unoccupied; for the demons had been unable to cast any soul into it, although their cruelty had induced them to attempt it many times from the time of Cain unto that day. All hell had remained astonished at the failure of these attempts, being entirely ignorant of the mystery, until the arrival of the soul of Judas, which they readily succeeded in hurling and burying in this prison never before occupied by any of the damned. The secret of it was, that this cavern of greater torments and fiercer fires of hell, from the creation of the world, had been destined for those, who, after having received Baptism, would damn themselves by the neglect of the Sacraments, the doctrines, the Passion and Death of the Savior, and the intercession of his most holy Mother. As Judas had been the first one who had so signally participated in these blessings, and as he had so fearfully misused them, he was also the first to suffer the torments of this place, prepared for him and his imitators and followers.
539. This mystery I was commanded to reveal more particularly for a dreadful warning to all Christians, and especially to the priests, prelates and religious, who are accustomed to treat with more familiarity the body and blood of Christ our Lord, and who, by their office and state are his closer friends. In order to avoid blame I would like to find words and expressions sufficiently strong to make an impression on our unfeeling obduracy, so that we all may take a salutary warning and be filled with the fear of the punishments awaiting all bad Christians according to the station each one of us occupies. The demons torment Judas with inexpressible cruelty, because he persisted in the betrayal of his Master, by whose Passion and Death they were vanquished and despoiled of the possession of the world. The wrath which they had conceived against the Savior and his blessed Mother, they wreck, as far as is allowed them, on all those who imitate the traitorous disciple and who follow him in his contempt of the evangelical law, of the Sacraments and of the fruits of the Redemption. And in this the demons are but executing just punishment on those members of the mystical body of Christ, who have severed their connection with its head Christ, and who have voluntarily drifted away and delivered themselves over to the accursed hate and implacable fury of his enemies. As the instruments of divine justice they chastise the redeemed for their ingratitude toward their Redeemer. Let the children of the Church consider well this truth, for it cannot fail to move their hearts and induce them to evade such a lamentable fate.