Yes , they are currently an FBS want-a-be but only in terms of years in classification. In case you haven't noticed, the entire conference that we cohabitate are former FCS members in recent years with the exception of Arkansas State and UL. We play programs that are far worse than they are today in this conference right now, and reality is they are miles ahead of all members in this conference financially and in branding rights.
Liberty may be all those things you point to, I don't spend large amounts of my time concerning myself with them considering they are a private institution. They are not using my tax dollars to indoctrinate, support subversive anti-constitutional thought without free dialogue and debate like many of the institutions and associations you mention without name. Have you kept track of what those institutions have done in the same areas of concern when it comes to discrimination and actually encouraging physical violence against those they disagree with?