I think it's a good and bad rule. It's bad since girls schools have to have 40% of their games on a Friday, Saturday, or Sunday to even out the "prime time" with boys due to Title 9. With 30 games being the max, they are now jamming games in to do this since Sunday has all but been ruled out for several schools.
It's good so that they get that day off of school and basketball to relax and be high school kids.
KHSAA needs to do something about how games are scheduled so that girls teams can schedule games when they want. As long as the Friday, Saturday options are available, it shouldn't be mandatory. If fans are going to come to a game, they are going to come. It doesn't matter if it's a Tuesday or Saturday.