"What they are doing is recognising that it isn't always best or possible on an Individual level"
This is true.
But the question for me is what is going on at an individual level with such a huge proportion of UK mums that's resulting in such massive breastfeeding fall out?
Because it doesn't happen for anywhere this many mums in most other developed countries.
It's not universal or intrinsic to breastfeeding.
It's something to do with UK culture.
And IMO part of the problem in the UK is the absolute cultural normalisation of bottlefeeding. This is is achieved partly through the big formula brands and saturating the media with references to their products, through widespread advertising in parenting magazines and on television.
And now Mumsnet is joining in. 
You have to remember that formula use and breastfeeding often DON'T co-exist happily side by side. It's like rock/scissors/stone. Bottlefeeding damages breastfeeding - the more formula is used, the less breastmilk is made, unless a mother expresses a feed for every formula feed she gives her baby.
The more bottlefeeding there is in a culture, the shorter the average duration of breastfeeding at a national level. It's an absolute anomaly in cultural terms - the sacred idea of 'consumer choice', which we WORSHIP in the UK (along with our reverence and ridiculous level of trust in branded products) is blown out of the water because in a physiological sense, it's hard for these two 'products' (mothers milk and formula milk) to co-exist happily side by side. Choose to give your baby formula and the overwhelming likelihood is that your breastfeeding will be curtailed. Because that's how the physiology of breastfeeding works.