I think there is more depth for boys. I also see the boys as more well rounded. Very rarely see female keepers that have it all, and that includes ones I've seen in the NWSL. They all seem to have some weakness, be it passing ability, leg strength, coming off their line, undersized, hands, etc.
My daughter has been blessed these past 4 months to be able to train with a starting D1 keeper. 2-3 times per week. She is a sophomore and started as a freshman for her college. Her weakness is leg strength. Doesn't get the ball to midfield, plays for a college that doesn't play out of the back, so that hampers her a bit. But having watched women's college soccer a lot, this isn't anything new. They all seem to have one or more weaknesses.