In part they've started doing that though.
A big problem imo is the lack of athleticism and training of the women in team sports. If you look at female 100m sprinters, they are insane athletes and very well trained. They outrun 99.9% of men in the world. That is definitely something I could watch.
This is not the case in for example female football players. They are not fit and they are not even technically strong. I am an amateur player, but I am very confident that I could walk onto any female national football team and be among their best players instantly. Which is demonstrated by the fact that they routinely lose (and lose big) when they play 14 year old kids. Don't get me wrong, I think it is improving. But progress is slow.