Joe...Please tell me why my perspective on this subject is sad? I'd love to hear why you feel that way. May I add, some 30 years ago or so, there was a NCAA Men's BB team named Gonzaga. To the power conferences at the time, the West Coast Conference was a joke and the Zags were part of that conference. The power conferences were soon to find out that the team they laughed at became a national basketball powerhouse. Using your logic, Gonzaga should never have been invited to that NCAA Tournament because they came from a mid-major conference and they would get trounced by schools from the power conferences. They were wrong.
Can a team like Army, Tulane or Liberty win 3 or 4 games in a row against schools like Oregon, Georgia, Texas, etc..., probably not. That being said, if they win their conference, they deserve a spot in the playoffs just like any P5 conference.
You never know who will become the next "Gonzaga" in FBS college football.