it doesn't have to change at all. While it is extremely rare for girls to go bidless at other schools, it is not at IU. This isn't a democracy and if 3000 girls want to try for 600 spots, so be it. While I think it's weird and oddly exclusionary, I'm not a student there and have no say.
__________________ "Traveling - It leaves you speechless, then turns you into a storyteller. ~ Ibn Battuta