Giles: you bring up good questions. Yes, the thoughts were in minds of theologians, saints. The best I read was, If one had desires to be baptized, and/or receiving classes, when they die, bury them as IF they are catholic. We don't claim they are, for that is God's judgement. We don't know. We go by what we know and that is "There is no salvation outside the Church".
It does not surprise me that this being most important, Baptism, and EENS, is attacked by adversaries.
What I see with BOD, is a lax, or slowness to Baptize. I actually heard a nun say, " Oh, there is BOD, and no hurry". Bologna I say!
Knowledge begets Attitude, begets Behavior. KAB. Communist go by this idea. Watch out for it.