As for the rest, I also think it's weird that the characters talk like Wyll made a choice while I made it for him. It makes me wonder if something different was planned here and eventually switched to what we have now.
I also get the feeling the reactions were written for an older version of Wyll's questline/arc. I actually think that may be the case for a few of the reactions after meeting Elminster again in Act 3.
Minsc says, "Goddess or no, it is a fearsome sting to be let down by a lover." Selunite Shadowheart says, "Poor Gale. I hope he knows that a goddess abandoning him needn't be the end - I know from experience." The news is that Mystra wants to talk to him now. It's the least abandoned he's been all game. I'm very curious about what Gale's arc was before rewrites, and how that impacted Mystra's characterization, but that's getting off topic.