That or they just had to make the grip smaller for her hand...
Just my call, but grips (and trigger guards) have been undersized from the start; not kid-size, but not much better. Opening the guard up and the 'grip safety' both make a lot of sense either way, I generated average man-hand renders to help scaling originally and the proportions still look off to me. As I said though, just me, but I beat my head against the wall on that detail for a while.