Ultimately I think the whole idea is foolish. It's a 10 team league and a complete round robin schedule. How can the league "force" rivalries. If every team played each other once and only 1 team twice and those mirror opponents are what the league is considering, ok. But everybody plays everybody twice so what's it matter who they "pair up" (whatever that means)? Based on when the games are played? What's it matter?
And the league shouldn't lock itself into season ending games based on their rivalry opinions. Going into every season, matchup final games with teams expected to be finishing around the same spots in conference. Inexact science, but for the most part will have picked properly come the end of the season most years.