This is something the later seasons sometimes did. They would introduce a whole bunch of ideas in the early going only to end them too quickly because the fans didn't initially like the material. I think that happened to Hannah and Cole here. Both subplots get wrapped up in this episode along with introducing Rowena. The resulting hour of TV is messy and feels slapped together.
The core developments of this episode-i.e. Rowena, the innovation of the demon deals are compelling-and how Hannah and Cole get wrapped up make sense. But too many moving parts in this episode.
The core developments of this episode-i.e. Rowena, the innovation of the demon deals are compelling-and how Hannah and Cole get wrapped up make sense. But too many moving parts in this episode.