It is just the math... guess we disagree

You could look at the "body of work" and essentially rate teams based on the entire year performance with some math/model

OR

You could give greater weight to the most recent games... again with some math/model

OR

use some other data set to assess performance... or just look at the games… no math/ "eye test"

each tries to assess the relative performance of teams and I am okay that different views will give different results.

and if I look at the Recent rankings, I think ND at 4 seems pretty fair.