Even if her questline is a bit shorter, it's still great and fully fleshed and finished very well. Dammon tried and failed, Gondians and Gortash's tech couldn't help so it's time to accept the harsh reality, like come on how many more things we should try for you to change opinion?(we don't take into consideration cheesy solutions like ressurection scroll etc). Just like Cyberpunk, her story is tragedy and it's a great one, I don't see a reason why this should be changed and even then you still can get hopeful ending in Avernus. As for convincing her, the decision could be made earlier but would that change anything really? She's a stubborn character so it's obvious she'd try to do things her way and could be convinced only at the very end when there is no other choice.
It's not a bit shorter, it's a lot shorter. And it's not fleshed out because you don't get to do much throughout it. It's just two fetch quests and a boss fight. Everything else you can do with Karlach isn't part of it.
We don't know if the Gondians couldn't help because we could never ask them. That's just not an option.
It's also not an option to sign any pacts or ask any gods. We just can't ask anyone or do anything.
How many things should we be able to try? At least more than the one thing we try in the very beginning would be nice.
Her story is not a tragedy, it's just pointless bullying. She barely gets to live, gets no closure, and no chance to fight for herself. You try one thing, and then you're not allowed anything else. How is this a good tragedy?
She can't be convinced earlier. Every time you bring up going back to Avernus, she rejects that notion because she would rather die than go back. Except for the very end where she does an inexplicable 180 and agrees to do it anyway.
And there's nothing hopeful about going to Avernus. It's practically a suicide mission.
