YES! there is a way you can be friendly with the petrified drow and talk to them!
(I have no idea if this was relevant but I was wearing a female drow disguise at the time...)
First, you go up to the wizard drow (His name is Dhourn Initiate of the living library) before the spectator pops up (DO NOT EXAMINE HIM) then unpetrify ONLY him (DO NOT UNPETRIFY THE OTHERS.) Let the spectator kill him (don't kill him yourself) and try to kill the spectator immediately.
One of the drow will have a full conversation with you and you will be on friendly terms with them.
