One of the things we did when the female start went into the game was to catch any male specific content that we could find. That said, the game is huge (Somewhere around 5 million words) and a few things slipped through the cracks. We try to get inconsistencies like that fixed as we either stumble across them or someone reports them.
So thank you for reporting this one, it actually helps a lot and we'll get it on our fix-it list. If you see any further instances where the MC is being misgendered, please let us know so we can fix them.