I think you find the answer in the very first paragraph, which is as far as I have got:
"They [women] have considerably more personal freedom; and opportunities for education and employment have been transformed. As a result they have much greater financial independence, which has given them more power to shape their lives".
All that is true until children come along, whereupon women find themselves juggling career and children in a way which men do not.
Also, do women have more personal freedom than in the 1970s? Ideals of beauty are more restrictive, there is porn culture, isn't that all just restrictive in a different way all the while being packaged as liberated and empowered?
Have opportunities for education and employment been transformed? Higher education was free, or at least you got grants in the 1970s. Employment is still dependent on affordable childcare, which is probably better than the 1970s, but still more than many can afford, and the workplace has not changed that much to incorporate family friendly working, there is still a glass ceiling and a pay gap. We are in the middle of a long recession, and women were the biggest losers in recent cuts.