I think you've hit the nail on the head for me with this. It seems a lot of people get into fandom for the pr0nz, and at least for this fandom, it means basically slashing the girls (or their charges) together to get their fix. I just don't get that...but hey, to each his own.

Most of the BSC stuff I've seen recced hasn't been slash, believe it or not, which I guess is just another piece of cognitive dissonance.