As far as Emmerololth goes, I would posit that in Galuf's memo it states that they first set the Isle of Val to drown in the Lifestream, and then gave the evacuation order. After that they combined forces to beat Emmerololth, also using the Lifestream. I always sorta took this vague rendition of, "Yeah, then we beat an Ascian while drowning out home in the Lifestream." as a sort of, "Yeah, we beat her by jettisoning her into the stream."

Either way, island disappears, and Emmerololth doesn't come back, but is then there in the post Ramuh scene. I'm sure Moose has gone over it all with a fine toothed comb many a time, but I can't help but wonder if the Emmerololth in the 2.3 scene is a lady or not. I'd also wager that the Ascians chocked having to raise another Emmerololth up to, "Yeah, ain't nobody live through getting trapped in the Lifestream without aid (except plot armored cat girls, of course)."

Also I always took the Ascian's surprise at us killing Nabriales as more of a surprise that, "Oh hey, they killed one of us with their own power. That is doing me a concern!" Rather than, you know, killing them by getting them to walk off a cliff, so to speak.