This reminds me of a game I once played called Yes Your Grace. In this game, you are urged to develop your own army to win the upcoming war. But the reality is that no matter how powerful your army is, it will have no effect on the outcome of the war. You always lose. This discovery annoyed me at the time.
I mean if you make a game just to tell a story with a fixed ending, and that ending is sad, then you shouldn't give the player the illusion that they can achieve a happy ending through their own efforts . You should not imply that players are approaching the crux of the problem by arranging various clues, let them feel that all problems will be solved in the end, and happiness will arrive, so as to give them the motivation to continue playing. At last, when they put in all their efforts to reach the ending, they suddenly found that the sad ending was fixed, and nothing they had done before made any sense. This is a deception. In a way, it's also a humiliation. It made me feel like a fool for being fooled.
And I don't understand why sad endings appear more and more in games over the years, or better yet, bittersweet. It's getting harder and harder to get joy out of games.
Going back to BG3 itself, despite the fact that there were many clues in the game that could have cured Carrack that were eventually discarded, I was actually able to be satisfied with that ending where the tav and Karlach went to hell together. But, why did that ending end so abruptly as if cut off? Even if it didn't show Tav and Karlach in Avernus, at least it should show the two disappearing from Faerun together. But none of that, the game just suddenly went black on the screen and I even thought the game was bugged. We don't even know whether the two of them went to Avernus or not.
Why? Could it be for a later plan, so Larian didn't want Tav to actually go to Avernus? Is it possible that the story after the screen turns black is that Karlach finally has to go back to Avernus by herself? because Tav has to stay in Faerun for some reasons so he can't fulfill the promise to go back to hell with her?