The hiding illithids weren't intentional. They kept going back into hiding after an attack an we had to change them after that.

I assisted a bit during this quest. I left my spell casting to sleep and charm. I didn't use half the things you mentioned, but, then again, there were two illithids at the time and mine spent most of the time in Galadon. Eshval can speak for themselves regarding their actions. All in all, I thought it went very well from my point of view.

As for Enarn, i thought he was extremely well-played. Keep them coming.