Baloney.
Pts allowed is a way more accurate gauge of a D than yds allowed.Teams that are often blowing other teams out will give up a lot of garbage time yds.
Only a neophyte ranks by yds allowed.
But the best ranking is a combo of several things like pts,turnovers,red zone d,3rd down d and rushing d combined.
Tedy Bruschi has a formula similar to this
Well you may be right that it’s better to rank units by points scored/allowed rather than by yards. I’m not arguing that point. The fact remains though, if you ever see like in NFL Today or whatever, or see a report that the Patriots have the X ranked defense, they’re virtually always using yards, not points.
I don’t know what else to tell you. That’s how it is.