Logic says that God does not command impossibilities. If a person is of good will, God can preserve him (through His mercy) to receive the Sacrament of Baptism. For although you believe in God's mercy (as I do), you deny His justice and His power.
You may be correct in that God can certainly preserve him, and I agree He can and has.
That would be God exception to His rule, and according to others of your beliefs, they deny God's exceptions to His rules, if you are one who does not deny His exception then you would have to consider that the person with Faith is favored by God if they should pass away suddenly but had every intention of receiving the Sacrament of Baptism because what comes first, grace or mercy?
This is why murder cries out to God for vengeance since murder interrupts the plan of God for a particular person.
People die when God had other plans for them to live.
There is so much that we really don't know but it is important to stay with what the Church teaches and not blame Modernist from centuries ago for inserting things in writings that you don't agree with. Have a little Faith in the Holy Ghost and the teachings of the Baltimore Catechism and other teachings like Trent. "
Or desire"!