Agreed.
But how about answering the question?
I already did. They died(and weren't even saved as such, they went to Hell first of all) under the Old Covenant. Entirely different ruleset to what we have now. There was no baptism back then, so how could BOD have saved them? And again, they weren't even saved - they were sent to Hell before Christ freed them. Unless you're implying that implicit BOD can bring souls that are
already in Hell to Heaven, the scenarios aren't even remotely comparable. Obviously the OT Fathers weren't condemned to eternal damnation for being "outside "of a Church that didn't yet exist or not professing faith in dogma that had not yet been revealed. None of that has anything to do with BOD which, as the first word of the acronym suggests, is a New Covenant concept.