Rankings only include divisional games, non division don’t count for or against you. The INFC website is all wrong and screwed up. The way I read the rules is that playoffs and seeds are determined on marginal points FIRST. Marginal points only count from divisional games. And an OT win/loss only counts as 1 point for/against you. Then if tied in marginal points it goes
to head to head. It really doesn’t say anything about win-loss record. So technically a team
With more division losses could get in the playoffs over a team with less division losses if they have more marginal points.

FYI, not sure if this helps

Article 2: Marginal Points
Marginal Points shall be calculated for each divisional game played
throughout the regular season. Post-Season eligibility and seeding shall be determined utilizing marginal points. The maximum number of marginal points
per game shall be eight points. No team shall add or subtract more than eight
points per game.
A. The maximum number of marginal points for any games that went into
overtime shall be plus or minus one point.
B. If two teams are tied (on marginal points), the advancer shall be the
team that defeated the other during the regular season.
1. If three teams are tied (on marginal points), the advancer shall be
determined by coin toss at a time and place determined by the
Commissioner.
2. Remaining playoff spots for tied teams, which lose the coin toss,
shall be determined by which team defeated the other during the
regular season play