I could see a 2 loss team get in over a Liberty but when was the last 2 loss season by a MWC team? Not counting Covid 10 years? It won’t be easy.
Most years at least one team in the MWC has a two loss season prior to the bowl games (this doesn't look at any of the schools that left the conference or prior to Boise State joining):
San Diego State 2021 12-2 including win in bowl game
Boise State 2019 12-2 including loss in bowl game
Air Force 2019 11-2 including win in bowl game
Fresno State 2018 12-2 including win in bowl game
Utah State 2018 11-2 including win in bowl game
San Diego State 2017 10-3 including loss in bowl game
Boise State 2014 12-2 including win in bowl game
Colorado State 2014 10-3 including loss in bowl game
Fresno State 2013 11-2 including loss in bowl game
Boise State 2012 11-2 including win in bowl game
Boise State 2011 12-1 including win in bowl game
There have also been another dozen plus games where teams have had 3 loses going into bowl games.