I think this is my overarching objection. That basically Feeneyites (for lack of a better word) interpret dogmatic statements the way Protestants interpret scripture, according to some defined "plain meaning", concluding that everyone who didn't accept "the obvious" (and I mean even before Vatican II, not just after Vatican II) must have been stupid or an infiltrator.
Well, no, obviously you go with the Church's interpretation. But what has happened to EENS is that people over time have changed the alleged Church interpretation over time. That's actually how Modernism works. After a few decades, "uhm, well, you know, what the Church REALLY meant by that dogma was ...". On the dogma of EENS, we've gotten to the point that the original meaning of the Church is now widely denounced as HERETICAL. So the devil has worked a major coup on this dogma.
What Pax is saying is to read the commentaries on the Councils that were made RIGHT AROUND THE TIME of the Council. There's zero indication that the Church was just using language freely and liberally, but intended the dogma in its plain sense. What the Church clearly meant was: "Hey, you see that guy over there? He's a Protestant. He's going to hell unless he converts first." The Church didn't mean the dogma as some abstract principle. It was very concrete. Read the writings of the saints; they minced no words that Protestants are all lost, that Jews are all lost, etc. None of them made exceptions for the good-hearted sincere Protestant, or the well-meaning Jew. This notion of "subjectivism" and "relativism" of truth had not so much cast a shadow on those Catholics' minds yet. Things basically were, to them, what they appeared to be. They did not see the world as just teeming with "Anonymous Catholics". This philosophical notion that reality was in your mind rather than easily observed started with philosophers like Descartes, and found its way into theology through phenomenology. More and more what was real was what your mind imposed on reality rather than the other way around, the reality that reflected itself in your mind. So the modern mind began being polluted with subjectivism. And ultimately this lead to Vatican II. When simple lay Catholics used to read the dogma EENS as reflected in the catechisms of their day, they interpreted that, quite simply as, "Those Protestant neighbors of ours, the Smiths, well, they're on their way to hell unless they become Catholics before they die." This notion of, "They're convinced that they're right, so they could go to heaven" would have gotten you labeled as a heretical EENS-denier, and you would have been laughed to scorn.
So the Catholic principle is that we must hold he dogma in the sense that the Church mean it WHEN she pronounced it. We don't practice "eisegesis" and read foreign interpretations into it after the fact, as our "awareness" of what the dogma REALLY means "grows". What was the mind and attitude of the Church AT THE TIME the Church defined the dogma, not that attitude imposed by polluted minds five centuries later.