Adult learning - always tricky especially when trying to cover all angles for each individual!
Having observed NCT and NHS antenatal classes can I just point out that often individuals come with their own agenda and opinions and this has to be balanced within a group - individuals are not always respectful to one another if it means they have to be present when things that don't interest them (or even go against everything they believe) are discussed within the group they are attending.
Sometimes we have to accept that one mum may not want to hear about the risks associated with epidurals because she is fearful about pain/labour/birth etc whereas another mother wants all the risks to be known to make her preference for not having an epidural confirmed in her own mind. That is the balancing act that a lot of antenatal teachers have to cope with and sometimes depending on the individuals coming to the group that can be an extremely difficult thing to balance!
In the case of the OP I think she has been able to reflect back and consider the reasons as to why the parents-to-be acted in the way that they did without it being from a judgemental/dismissive POV. Only the NCT teacher may have some insight as to why they behaved as they did and then the needs of the whole group have to be juggled - sometimes doing this in front of whole group may be the best way to go, sometimes not.
This group may have even given feedback at the end of a course that they did not want to hear about a birth with lots of intervention for whatever reason, although as it has been pointed out, they may be more than grateful at a later date.
A lot of mums attend NCT groups because they would like a straightforward birth - because of the positive outcomes provided in evidence-based research.
Who then suggests there is a hierachy of birth? Who judges and feels guilty for not matching expectations? Clearly not the NCT - in all its policies and literature - it is all for supporting women in their choices - if it has an agenda it is in response to those parents who want something done about not having the choice of a home birth,a rushed unsupported labour or unnecessary intervention or did not have the ideal birth experience whether that was by elective section, c-section,straightforward birth etc.
And to those who want to dismiss labour and birth as a means to an end - ie a healthy baby then why the need for such excellent sites as those supporting women in PTSD and traumatic births.To some women it does matter.
Preparation for birth clearly requires an open mind but if the adults who attend classes do not want to consider other options, different points of view or stick there fingers in their ears when something they don't want to know about is discussed then they are entitled to feel this way but have to recognise that not everyone shares it. If you attend a class and say want an elective section having already taken the trouble to read up and obtained advice about it then fine - but other parents may want to discuss risks associated with a section - are you going to feel judged because they simply want more information?
And if parents to be feel the teacher is blinkered then they should challenge such views - after all in the case of the NCT classes they are paying to be there - at the very least they should provide feedback about anything they are unhappy about within the course.
Having taught children,young adults and adults the most difficult group is always IMO adults because they are always less open minded and less likely to raise a criticism to your face - but then I always like a challenge!!