In the film Serenity several fan-favourite characters die:
Hoban Wash and Shepherd Book.
In particular, I felt that Wash's death seemed especially pointless - not a heroic end but just dead without even a closing speech, unlike Shepherd who at least got to make a few wisecracks.
What is the out of universe reason for this?
Was it just to heighten the tension, since almost everyone was injured at the end and could have died as well? Or did Joss Whedon want to refresh the crew in any future series?