Debriefs are private, so that they can be frank.
That would have been a good idea except that briefings, let alone debriefs, were not that good/virtually non existent. The 'briefing' was as we were taxiing out and the 'debrief' was whilst taxiing in. I was more concerned with the aircraft than taking in what was said.
I hope things have improved in the meantime.......................