I really like Shaw as a character - her determination, her belief that answers could be found.
She found herself in a position with no one left to help her besides David. There is such a rich and interesting story to be unpacked from their time on Paradise, and David even alludes to some of it in the Advent short film. I would have loved to see Shaw watching David become more and more unstable, watch as she tries to figure out a way to survive his increasingly overt attraction to her etc. That could have been a fear and tension filled sequence of events, all taking place on a world that is foreign, eerie, and filled with the bodies of people David has killed.
Although, with how they left it in the film, it leaves a lot to the imagination, and I find myself almost writing scenes about what happened. And in some ways, that is the fun of not knowing everything. It feels creepier than knowing it all.
So, Shaw's death got under my skin for sure. And the way her body appeared, the obvious experimentation...I just kept asking myself "What happened, Shaw? When did you know that you weren't going to survive?"