Yep... I'm positive now, you don't know how to distinguish between objective and subjective.
Facts aren't subjective. Opinions are subjective if based on facts where a human gives each fact a varying importance.
And there is no "formula" in D2 regional rankings. Each super-region has a regional committee that ranks the teams. Here... this link lays it out better than I can.
http://www.sbnation.com/college-football/2014/11/12/7194821/dii-diii-naia-college-football-playoffs
So yeah, humans decided which games are considered in ranking teams in the regional rankings. And there are automatic bids... if a conference is unrepresented in the top 6 of their region and there's a conference champion ranked at either 7 or 8, then the conference champ goes and kicks out one of the top 6. Come to think of it, this is what happened to my school. We were ranked number 6, but a conference champ from an unrepresented conference was at 7 or 8 and kicked us out.
That link says the regional rankings are subjective...