Yes, I'd noticed that too, and it does not sit well with me at all. You have created a series that is a real landmark in terms of richness, depth and complexity. A series that, as you say, is still being bought and loved and read. While Wheel of Time, which is derivative and dull, is lauded to the skies.
For pretty much every top selling man, I can list a woman as good or better who is overshadowed and even sometimes undermined. It's not good.