This discussion may contain spoilers!
hey friends what up before i start it would be foolish of me to not mention my youtube channel DapperDuelist
So a lot of people are having trouble understanding Sarah's death and understandably so.
The character was developed to mirror Clementine, what would happen if you could not adapt. She dies not being able to deal with loss, so big whoop right? The choice to save her was pointless then if she just dies in a silly, albeit sad, way.
Sarah was also meant to flesh out another character, Jane, essentially an older version of Clementine, just like Molly. What happened to Jane's sister is exactly what happened with Sarah. Do you let her die on her own accord, her death in the cabin, or do you save her for a death later on, her death by walkers. many people felt cheated with her second death but it was inevitable.
Also a quick shout out to Nick's death, I remember listening to Telltale's conversation online a while back and they said something along the lines of that not every character gets a hero's death. Sometimes it is more realistic to die off screen.