Agree it crammed a lot of thinking into a short space of time.
It is scary how thick unquestioning so many members of the public can be.
It made me even more in awe of the people who stand up for something, whatever it may be, even more when they are at risk for doing so. I feel like the showrunners/presenters were way too fair in the way they allowed the participants as much grace as possible, acknowledging that it can feel awkward/impolite to raise concerns - they were literally being asked about what they felt, and most of them still didn't say a word, even when they were in a group with someone else who was challenging it! They could not have made it less intimidating to raise even a mild criticism or question.
It was interesting in terms of social contagion too - in the group with the three women you could see that once one of them raised concerns the others felt they could say similar as well. Whereas in most of the others because everyone else was saying 'How wonderful' they nodded along and agreed. No excuse for that awful red haired woman though - even after having it spelled out to her by the teacher she was still disagreeing and saying how fantastic the whole idea was!
Fair play to the actors and presenters with the way they engaged with the visitors afterwards. I honestly don't think I would have wanted to be in a room with most of them after hearing some of their comments, let alone have polite conversations.