as far as I know there is no way to talk to them. I also thought this might be a case and did the fight 3 or 4 times. Even killing the spectator without hitting any of the drow I still had to fight them. If you look at the lore material/document one of them had they were down there to attack the temple of selune, so along with being evil alignment them being hostile makes some sense.
Except when you character is lolth sworn drow herself. It's right up on her face.