Oh FFS. It doesn't mean that you shouldn't talk about and reference Ina May.
Just be aware of the strengths and weaknesses of what she says.
She clearly has had a positive effect for a lot of women.
The problem is when it becomes evangelical and not aware of its own bias and flaws. Especially if it has unintended consequences which are negative. (and the evangelism element is harmful because it sets up poor narratives and can produce unrealistic expectations)
One of the things that was stressed to me was 'how are you going to cope if it doesn't go to plan' and how you need to consider this. And to mentally prepare for that.
The problem, and possibly part of the reason for its success, is that Ina May philosophy seems to rely heavily on the psychological trick of single mindedness which is also used today in sports psychology.
When it works fine, but the downside to that is how it leaves women if 'it doesn't work for them'. It places the sense of failure on them personally or demonises the very people who are there to help when there are problems.
At its heart is this idea of 'the cascade of interventions' as a theory. It is flawed as it suggests that it's a failure of care givers making decisions - in many cases this might well be true due to poor practice, lack of skills and defensive medicine. However its also the pathway if there is a very genuine problem which care givers need to adopt to save the life of you and your baby. So if you believe in the cascade of interventions unquestioningly it can be harmful in terms of trust with health care professionals.