If Mississippi States one spot drop feels off to you, it’s because it is.
In the history of college football there have only been two cases where a team fell less than 10 spots in the AP Top 25 after a 30+ point loss this early in the season.
1994 Tennessee fell 8 spots
1984 UCLA fell 9 spots
So yes, Miss States falling only one spot is not only an anomaly, it’s statistically unbelievable.