Some of what he’s saying, doesn’t account for injuries or recency, etc, is a known issue with any ranking model. And I think the NCAA refuses to consider those factors.
My biggest issue with Kenpom is that it doesn’t limit blowouts, and as a result, teams are rewarded for blasting terrible teams. By my math, us whomping Alcorn St early on currently moves us up about 8 spots. If our entire noncon was sub-300 SWAC/NEC type teams and we strafed them all, despite never playing a competent team, we’d enter B10 play in KenPom’s top 20. Obviously a flaw. But because Ken is trying to rank offensive and defensive efficiency and then reverse engineer an overall ranking, he has no choice.