As someone going through the process right now. Most of the talk is balanced in the same way that teaching intelligent design together with evolution is teaching a balanced view on current "evolution theories". In NHS view, everything is good and giving good result, that's purely your choice. At most they will recommend something like "Vitamin K" to the baby at birth, or give you statistic like 90% of women have a peridurale, but otherwise, it is up to you to document yourself or ask precise questions because balanced means all option will have equal talk time focused entirely on the positive aspect of it or mandatory disclaimer of objective nature only (i.e. never "it can hurt", but stuff like "it can affect your bladder in that fashion")
For example, they will tell you how great Home Birth is and how great the birthcenter at the hospital is, but they will not check if your specific Home is actually superior or not to Hospital Birth. That's up to you to do the assessment yourself. based on what you read on the internet, not what they tell you. They will talk to you about all the mandatory problem that could happen with epidural, they will not tell you to do anything but will conclude with "women with epidural do great, but so do women without epidural". They will also share personal experience of women going through labour with a few paracetamols just in case they thought they pushed you toward epidural too much. Again you need to make up your mind based on the information that is available to you, not on what they tell you.
BTW, we had a midwife recommending us to take document ourself before chosing for our kid to have the MMR vaccine because there are pro and con and the risk is to get one of MMR is actually very small. She didn't say the risk is small because of all the others that get vaccinated. (disclaimer: that midwife was an all natural as god intended type of person. So most likely her view were different than the NHS view. Still, she was allowed to express this balanced view of things)