Fair take except there's scant evidence that the Harbin system predicts the best 8 or best 16 due to, in large part, schools hiding out in weak conferences. Does anyone really believe Westlake in D2 R6 is worthy of a playoff berth with a home game? I'd bet $100 that Brecksville, who plays in a MUCH tougher conference, will put a running clock on Westlake.
This isn't just a private/public thing. Norton in D3 R10 racked up 7 wins against D4 and lower teams yet earns a 2 or 3 seed.
Agree, with 16 getting in, it's hard to argue for teams with 4-6 records claiming they deserve a playoff slot. Still, it's worth questioning the Harbin math whether it's 8 or 16 getting in.