LadyHel, I agree then, that the message you got was not right - the idea is to inform people. I'd suggest though that many people come to NCT classes already having strong feelings about how they want to feed (I know this from my own experience of listening to mothers and also reading their views here :)) - mothers are not mere empty vessels in which we pour our 'stuff'. The breastfeeding session is 2-3 hours. The whole culture and upbringing and experience of the average adult in the class totals a lot of years.
The feeling of 'failure' some mothers have when they give formula may not come from us - though it should never be enhanced or sharpened by contact with us, and I think we have got this a lot better and clearer these days (we have a 'new message framework on infant feeding).
Celine - everyone who does an NCT course gets the opportunity to give feedback, to the organisation and the course teacher. I agree with you that not everyone wants to complain, but I promise you they are invited to comment and to feedback, in any way they want, and thousands do.
www.nct.org.uk/courses/quality-assurance/course-feedback
"Overall assessments
19 out of 20 first-time mothers (95%) and first-time fathers (94%) agreed or strongly agreed their teacher did a good job, and would recommend the course to other parents.
97% of first-time mothers and 91% of fathers felt their needs were met by the course."
That's from survey 'preparing for birth and parenthood' - googleable, survey from 2011.
I'm bowing out of this debate now - got to get on with other stuff. NCT knows it gets things wrong, and has got them 'wronger' in the past, and it is continually making strenuous efforts to be more consistent ie 'righter' more often. The evidence is most people are happy with their experiences.