Rahner was HONEST ... even if heretical. He had every reason to distort the historical / Patristic record, but he wouldn't do it because he had a certain amount of intellectual integrity that most Traditionalist BoDers lack.
No one has ever explained to me the difference between what they think and what Rahner, theologian of Vatican II, postulated, which was also taught in
Lumen Gentium. Anonymous Christianity means that a person lives in the grace of God and attains salvation outside of explicitly constituted Christianity — Let us say, a Buddhist monk — who, because he follows his conscience, attains salvation and lives in the grace of God; of him I must say that he is an anonymous Christian; if not, I would have to presuppose that there is a genuine path to salvation that really attains that goal, but that simply has nothing to do with Jesus Christ. But I cannot do that. And so, if I hold if everyone depends upon Jesus Christ for salvation, and if at the same time I hold that many live in the world who have not expressly recognized Jesus Christ, then there remains in my opinion nothing else but to take up this postulate of an anonymous Christianity.
This discussion among traditionalists is absurd because it is really never about the
catechumen; but about the hypothetical anonymous Christian described by Rahner above which ends up being the "nice guy" next door. I notice more understanding on the remote possibility of a "Baptism of Desire" among conservative Novus Ordites. At least, they make the connection between the Baptism of Desire and actual
dying catechumen.