The reason we win so many tie breaker scenarios is that we are 1 of 2 teams that have beaten Drake this year. Because you get so many points for beating the number 1 team in conference, and since no one else has done it, it makes us win most tie breakers. Also, you must assume that most teams split the season series with other teams if they are in the 3-7 range. Here's an example to help simplify with Indiana State:
Bradley and Indiana State split games with:
Bradley has split with everyone so far except Evansville which they are 2-0 against.
Indiana State has split with everyone so far except Evansville (2-0 against them) and Drake (0-2) against them.
Since the results are the same against most teams, the tie breaker point difference will come from differences in wins where Bradley has a huge tie breaker points for beating Drake once and Indiana State does not have that.
The same scenario happens for most teams in a tie-breaker scenario (except SIU who also has beaten Drake). Creighton has 2 wins against MSU and UNI but has not beaten ISU or Drake which carry the most tie-breaker points. Because we have split with everyone, we probably beat everyone in a tie-breaker scenario.