I'm sure I don't have to mention why many traditional catholics equivocate and dance around this issue. Here's my own examples, and both of them were baptized catholic.
I have a brother and a sister both in their sixties. My brother has had so many strokes that he is like a seven year old. Since he was about eighteen, he considered himself an agnostic. Before he lost his grip on reality, he was dabbling in pagan stuff - you know, the goddess diana bit. My sister lost her faith in college thanks to a communist professor. She regained it briefly in the early nineties only to let it lead her to the new age nonsense. She is a real intellectual - what her brilliant mind cannot comprehend she dismisses. Funny how she will accept that diabolical book "A Course In Miracles" but will dismiss the New Testament as pious tales. Funny, too, how satan has a way of doing that with all of us. He always double crosses his stooges.
Now, you can lead a horse to water, but you can't make him drink.
These are my examples. Many here must have relatives who are not Catholic. No one wants to even think of anyone going to hell. Faith is a gift, isn't it?
On the other hand, if what this invincible ignorance stuff, (which has been really been brought to ridiculous extremes this day and age) is true, why be Catholic? Why be anything? "Just whistle a happy tune and let your conscience be your guide. "