No doubt a lot of it is bullshit, but it goes back further than SATC. From observations reality does set in but this new breed of independent broad is prepared to fight against its own emotional wellbeing to prove a point - that they don't need looking after.
Where a man would give in to craving a woman does not. Whether either is a good or a bad thing is subjective. Women are extremely stubborn creatures, men just do whatever feels good.
Of course this is a pretty generalised observation of Western women, this shit is completely different in regions like Asia.