In college football, perception is reality.
With the departure (recent) of GS, App, ODU, Coastal, FCS is considerably weaker than it was 5, 6, 7 years ago. Will FCS recover? Maybe, but it will be a long long time before that happens.
Just looking at the situation from my general neck of the woods, look at the teams who have left over the last 30 years. Is the Southland as good as or better now or when it had Arky State, LA Tech, ULM, Texas State, N Texas, and Troy?
IS the OVC as good as or better now or when it had MTSU and Western Kentucky?
The CAA lost ODU to FBS, and added Elon as a replacement.
The SoCon lost Marshall, App, and GS. Their respective replacements were Wofford, ETSU, and Mercer.
I'm sorry, but FCS/I-AA isn't what it used to be from a perception or a competitive standpoint.