Spartacus, I take some issue with that interpretation.
You have decisions made on the basis of conditioning - with the use of information and sources which might be biased in someway and you also have decisions based on proper evidence based medicine (which includes the physical and mental well being of women) which empower women to make decisions without undue pressure placed on them. Understanding the difference is crucial and should be stressed.
One of the problems is that women's health is particularly prone to political interference which is designed to influence behaviour which is carried through into research so that research fails to be as robust as it should be in terms of being evidence based rather than ideologically based.
Radical feminism as such, supports choice based on a society which recognises the inherent bias in medicine and research and how that affects women and seeks to address that to empower women.
I personally think choice therefore is an integral part of radical feminism. Its just how you talk about the framing of that and whether choice is free from political bias which isn't centring women first.
There is clearly an issue which is particular to the UK itself, if so few women are breastfeeding at 12months compared to elsewhere. Either you believe that breastfeeding is antifeminist and the UK is streets ahead of the rest of the world, or you view it as women in the uk living in a society which is restricting women almost completely to breastfeed past six months to a degree which is totally unseen anywhere else. I find it hard to believe that radical feminists believe that breastfeeding past six months is an inherent evil and against their interests tbh.