Again, you are putting too much weight in regular season wins. The postseason schedule with days off between games is completely different than the regular season where you can play many games in a row without days off. The 2014 Kansas City Royals, for example, with Holland, Herrera, and Davis was sick. The postseason schedule allowed them to maximize those star players whereas you have to caution their usage over a 162 game season. A system that would exclude a team like that isn't optimal imo.
It also goes with their opponents and what starting pitchers they see whether they are stars or AAA call ups.