The points calculation formula was wrong.
It count earlier base_cost*2^level-1 instead of base_cost*1.5^level-1. The difference was higher for each additional building level.
Compare Your points to vanilla calculators like here
http://www.o-calc.com/?sec=_colcost&lang=en
You didn't lose any single level of building/technology/fleet unit.
Summary of changes:
https://github.com/steemnova/steemnova/pull/85/files
RE: SteemNova - Rebalance buildings and technologies cost