Reconciliation is the point of reconciliation, not an arbitrary threshold of level of detail that one considers suitably informed.

Is this stance informed by therapy/counseling practices? Honesty and forthrightness about the infidelity are a given, but I haven't personally encountered the idea that any-and-all questions must be answered.

In my previous comment, I gave you a few examples of questions a BS husband might ask his WS wife during an interrogation. Are you saying she should be required to answer all of those if the betrayed husband insists?

Or that these answers would be in any way meaningful for the purpose of reconciliation?