I hear you but I don't see it that way. The NBE with us in it will have the strongest argument to keep a seat with the P5 at the BB table if there is ever a P5 split. I don't think the AAC is ever getting a seat at any table, BB or FB - it would cost the P5 too much to share FB money/access with the whole AAC. If the P5 doesn't want to include the NBE in any future split, it will raid it to weaken the NBE's position and take us away from a competitor (w/ FB, even bad FB, we will be the only possible target).
Alternatively, the P5 will include the NBE in any future split for BB and we will be an independent FB school with P5 ties. I assume the worst from the P5 which means they will try to isolate the AAC in years to come by creating barriers to scheduling AAC teams. If that happens, going independent may keep us on the better side of the P5 scheduling fence, given we would not be viewed as competition as an independent -- and hopefully maintaining favorable schedule preference with the B1G and maybe others, even if not in the P5.
My view is we have to be really really good at something to have any hope/leverage. I prefer our chances in MBB (and of course WBB hopefully stays great) in the NBE. Either way, I think our chances are very low so if we have to be somewhere, this to me is our best move.