If they wanted Karlach not to be fixable from the beginning, they could do her whole quest differently without hints, that you can save her and make her story really sad and no one will probably be against it. But they've implemented Gondians and Dammon into the game and didn't expect that someone will ask, how it is not possible to ask them, if they are the key persons for the fix? I don't think they are completely honest with fact, that Karlatch wasn't mention to be fixable from the beginning. There are too many hints that at least in some stage of the development, this meant to be possible.
If they wanted her truly dead at the end, they should do it correctly and close all possible (I mean the obvious ones) ways how Tav can save her. This will be sad story, but well written story. I hope they didn't do this patch 5 fan service like we wanted her dead, but fans not, so we'll let her live.
After the ign interview I'm kinda thinking the same. Their entire story for her at launch was "look at how happy she is in spite of her condition isn't she great and upbeat! Well now she's burning alive. Alone. On a random dock. Please ignore all the ways to save her."
