I somewhat agree but would de-emphasize the "sexist" part (although it is somewhat true), and emphasize that the nature of the site. If the site is meant to provide information quickly, or the users look for information quickly, a Pinterest-style layout is bad. If a site of this style has a Pinterest-style layout, it should give all tiles a constant height so scanning the information is easier. On the other hand, if the site is meant for browsing, or to be visually inspiring, the Pinterest-style layout works very well.
