I think they miss the point. It's a boy, who's to push the pram, but the pram still has to be pink, even if it doesn't suit the Spiderman's outfit. I believe they are not making the gender roles obsolete, but only switching them instead.
I hate it when people switch from one point of view to it's opposite and a real change is postponed.
One day we should hate black/gay/Jewish people and the next day we should love them - but we cannot forget about the divisions and move on.
We are going in circles, 180 degrees at a time...