I had a similar thinking 2-3 years ago when I had a number of followers as a goal... That was completely OUT of my control and I failed that goal... But, I wouldn't say the same for HivePower goal, as it contains my future curation rewards (predictable number), author rewards (unpredictable, but you can find a close estimate), and future HIVE purchases (partly predictable)... So, it's not that much "out of our control"...
But, I do understand your point... Someone likes additional pressure, someone likes easy and relaxed ride... ;)