Not exactly a new concept, but here's an example why a .500 league record shouldn't be an at-large requirement:

Per KenPom, number of teams that would be expected to finish .500 or better in the Big Ten:

7 — Big Ten
5 — Big 12
4 — ACC
2 — Big East, Pac-12, SEC
1 — AAC, MWC, WCC

— Eli Boettger (@boettger_eli) December 28, 2020