Warm greetings Cara,
Here is my thinking, which is influenced by what I have heard from several Bhikkhunis.
For bhikkhus:
A bhikkhu who commits an offense against any of these thirteen sanghadisesa rules is duty-bound to inform a fellow bhikkhu and to ask a Community of at least four bhikkhus to impose a six-day period of penance (manatta) on him. … … Once the bhikkhu has completed his penance, he may ask a Community of at least 20 bhikkhus to give him rehabilitation. Once rehabilitated, he returns to his previous state as a full-fledged bhikkhu in good standing. - Buddhist Monastic Code
For bhikkhunis:
If a bhikkhunī has committed one or other of these offences, she must spend half a month on penance before both Saṅghas. When the bhikkhunī has completed the penance, she is to be reinstated by a Bhikkhunī Saṅgha of twenty. - Bhikkhuni Patimokkha Third Edition
It seems compassionate then that an offense of this nature would not require a woman to confess it to a group of men.
With kind regards,
Sister Niyyanika