Most of the season was an arc involving Cain. That arc was completed. The last two episodes of the season were stand alone and a bit bizarre. One introduced the angel of death and the other was an alternate reality story. It felt like they were tacked on to the end of the season.
Obviously Fox cancelled the series but the decision involving the episode placement had to have been made long before the decision to cancel. Was there any explaination why the season ended with those episodes instead of the end of the story arc?