Larian has explicitly stated this was untrue. I don't see any reason to disbelieve them as her entire arc seemed to be leading up to that scene on the docks.
Well, that would mean her entire original arc is: A pair of fetch quests, so she can touch people again -> "Isn't life unfair" -> Death. Meanwhile, you have the Gondian + Steelwatch connection that fizzled out after it being setup at the start of Act 3 and possible datamines for cut Upper City content (Which I personally havn't seen evidence for, but people were reporting it last year)
I think the quests for her story suck. As you said, just a bunch of fetch quests and they take away the emotional impact and sense of urgency you're meant to feel. But I believe the story is meant to be analogous to dealing with a terminal illness. The hope and search for a cure that never comes, the fact that it happens to good people who deserve better, etc. At least it felt that way to me as someone who has experienced having a loved one diagnosed with a terminal illness. Story wise there were impactful moments but I agree that the quests were poorly and lazily executed. I'm glad they ultimately did provide a real chance at a cure in the epilogue but that was written after they finished her main story. (I also think this had to do with the fact that they were working on the canceled dlc at the time.)
