All She Had To Do Was Lean Forward...
...and the raid would end with another victory for Lolth. I suspect that the goddesses' "breastplate" would do quite a bit of damage. Lolth could also have used her hands and arms to sweep any melees that got close enough or, if the devs had gotten creative, spewed fire or acid from her navel.
My point is, I think that the flow of the raid should have gone differently. Lolth's Eminence shouldn't show up until near the end, and it should have more special attacks. You'd think that if Lolth bothered to show up as a fifty foot-drider, she'd try to use her size to her advantage, right? It's silly that all she does is try to step on the players with only a few legs at a time, or shoot SP-draining laserbeams from her eyes at them.
The raid would be SO much better if the mechanics within the raid were switched around a bit... except for the portal keepers, those are just silly when Lolth can just cover up the exit to the Demonweb with her hands. :P