In order to get the complete rewards from a Dungeon run, you need to complete the run. Of course you feel un-rewarded because you'll only accept exactly what you want as a reward.
This expansion is veering away from the insta-gratification scheme, it may be that you are truly not into it. That's fine, but to blame the rewards for your not completing a task is pretty childish.
My last line was a bit of a Troll, but my sentiment is correct. My advice: "If you don;t like it, don;t do it, and stop yer whining".