It seems as though a) C-USA teams are underdogs to everyone, and b) either they are bad at making matchups or they just couldn't find teams as bad as C-Usa teams.
Bahamas Bowl Odds & Information
Matchup: Middle Tennessee (CUSA) vs. Toledo (MAC) Toledo -9
Boca Raton Bowl Odds & Information
Matchup: Western Kentucky (CUSA) vs. Appalachian State (Sun Belt) Appalachian State -2.5
New Mexico Bowl Odds & Information
Matchup: UTEP (CUSA) vs. Fresno State (Mountain West) Fresno State -13
Independence Bowl Odds & Information
Matchup: UAB (CUSA) vs. BYU (Independent) BYU -8
New Orleans Bowl Odds & Information
Matchup: Louisiana (Sun Belt) vs. Marshall (CUSA) Louisiana -5.5
Myrtle Beach Bowl Odds & Information
Matchup: Old Dominion (CUSA) vs. Tulsa (AAC) Tulsa -7.5
Frisco Bowl Odds & Information
Matchup: UTSA (CUSA) vs. San Diego State (Mountain West) UTSA -2.5
Seven games. Underdogs in six of them. By an average of 7.58 points per game. The only way to prove that your conference is better than others is to win.
Let's see how it went in 2019;
UCF 10-3 21 3 21 3 48
Marshall 8-5 0 7 18 0 25 GASPARILLA BOWL
SMU 10-3 0 14 0 14 28
FAU 11-3 7 21 14 10 52 BOCA RATON BOWL
FIU 6-7 0 13 10 3 26
Arkansas State 8-5 14 6 7 7 34 CAMELLIA BOWL
20 App. St. 13-1 0 10 21 0 31
UAB 9-5 14 0 3 0 17 NEW ORLEANS BOWL
Buffalo 8-5 7 10 7 7 31
Charlotte 7-6 0 0 6 3 9 BAHAMAS BOWL
It is what it is.