Budget, tradition, recruiting footprint, fanbase, facilities, academics,
alumni base, bowl history, media exposure...do you need me to continue?
In almost no way are BYU and USU similar, except that neither are in a P5 conference (and even then their situations are completely different).
My post was kind of rude, and apologize, but you would really have to be blind to not see an enormous difference between USU and BYU.