Yeah, we know that the makers are forethinking the second season but that does not mean that you will not bring closure to the ongoing story.
The acting and characters are all good with a nice build-up in the first few episodes but as a viewer, you cannot take away much from this series.
The makers should understand that there is a sizable number of audiences that want to watch quality and not just anything in the name of entertainment. Not saying that this had no quality, but the ending suggests that you are being more greedy than trying to give back the worth of the audience watch time.
Hope this would be a learning!