I really don't have a problem with it. As long as the individual parents who form the leadership of the troop don't have a problem with it. Troops always work best when the parents are involved and watch everything.
I think that as girls go into Boy Scouts there may be a drop off of girl activity. Most girls are not fond of raw camping.
If you need a father/daughter group, that isn’t as structured as some of these other groups, see if you have a Y Princesses group in your area... Its definitely NOT the boy scouts or the girl scouts, but it is an organization dedicated to the fostering of the father/daughter relationship.
Sadly the Girl Scouts were taken over by radical feminists and homosexuals at the national level at least 2 decades ago, while the individual troops are still generally run by good folks, the org itself long ago lost its way.