Thanks for writing your thoughts. In the demo, the most interesting results will show up when you play out a 2nd life, after accomplishing key deeds in the 1st life. For example: choosing to spare/slay Mizgrub, or finding the Lost Temple.
Did you do those things and get far enough to see how they impact the 2nd life? If so, I'd like to hear what felt underwhelming, or what kinds of consequences you were hoping to see.
The full game's later regions will have more branching paths. The first region and early origins are designed to ease new players in.