I believe what the reason it's biased towards women is that many years ago the man was the sole provider of the household. The women didn't have to work and families could make it on one income. Back then if a man or woman left the relationship, since the woman didn't work, she was screwed. No house, no car, no income etc.
Now due to inflation and other things we can no longer make it on one income alone but the laws have remained the same. Time to change the laws.