Reading this brought back tears to my eyes again after having experienced that playthrough myself. It'snot as much that her condition has been kept away from the player, nor that it hss been written badly - because it's some of the best tragedies ever, honestly.
But it's so wrong in the sense that there's genuinely nothing the player can try to do and accomplish in terms of helping her with all the already implemented possibilities in the game. In a high-fantasy world full of opportunities. I for one would gladly give my life or sell my soul to the devil if it meant she got to live happily in Faerun.
I refuse to get too far into act 3 as the endings were something I personally looked up as I was closing in on the final act because I've heard other endings being good and wanted to make sure my favorite gal also got that. Imagine my face when I was met by a big fat nope.
I just want to do the near impossible in late-game act 3 and give her a chance at staying alive without pain, in the colorful world she loves and defends.