(3) The dogma must be understood and explained as the Church's magisterium understands and explains it.
Any time you see this as a part of an explanation of the dogma EENS, you know error is right at the door step.
Since V1, #3 should repeat the words of the First Vatican Council, which decrees:
"Hence, too,that meaning of the sacred dogmas is ever to be maintained which has once been declared by holy mother church, and there must never be any abandonment of this sense under the pretext or in the name of a more profound understanding." So your number 3, per V1 should say:
3) The dogma must be understood as declared, because per V1, this is the way the Church understands it and this is how the Church has defined it.
What you promote, what Fr. Fenton promote is the abandonment of this sense under the pretext or in the name of a more profound understanding.
How is it that you have allowed yourself to be so blinded? - I believe it is due to your constant public adulteration of the dogma under the pretext or in the name of a more profound understanding and your constant public corruption of the Church's teaching on the necessity of the reception of the sacrament of baptism for every human being unto salvation.