They are totally right, it's a shame that PC Gamer did not name a single woman.
One nitpick though: Two of the women named in the article, Rieko Kodama and Amy Hennig, did not create games for PC. Both were employed by console makers. Jen Zee being acknowledged is certainly deserved, but a there are many, many trailblazing women in PC gaming which should be highlighted: Roberta Williams (co-founder of Sierra Online), Brenda Romero (Wizardry series), Jade Raymond (Assassin's Creed producer) or Danielle Bunten Berry (M.U.L.E.), just to name a few.
Particularly the omission of Roberta Williams who has not only co-founded one of early gaming's most successful game dev studios and publishers, but also designed the long-running King's Quest series which transformed and defined the adventure game genre, is inexcusable. It does not get more influential in gaming than that.