I absolutely agree. This kind of debriefing or check-in can certainly be done as a group, where if members want to talk....
You want to be careful that people don't go too much into trauma detail, because that can be very upsetting for other people in the group. It's just to give some education about symptoms, what can happen down the road, and whether anyone wants to talk about how they're feeling. Then it's, “Here's the number. Call us if you want.”
You can do it as a group, but then, as Dr. Baillie was saying, follow up individually.