Why does Peril use the phrase " the graveyard of outdated popular culture" to refer to pink think?

"Pink think" is a model of thinking that prescribes certain social roles that are suitable and appropriate for women, such as "sugar and spice and everything nice", fear of mice, bad driving, interest for gossip, the ultimate function of childbearing ... According to Peril, all of these stereotypes are outdated - but they still somehow sustain because the patriarchal model that is at their core sustains and survives.