I’m not following your thought process. You said they were a top 5 defense and told me to look up some stats. They are nowhere near top 5 in any category, and they certainly don’t pass the eye test.
Some stats?
Ranked 59th in total defense.
Ranked 48th in rushing defense.
Ranked 92nd in passing yards allowed.
https://www.ncaa.com/stats/football/fbs/current/team/22