At the risk of being a boring pedant, that is not half a squad. That's half a starting XI. The matchday squad is the 18 players, our squad is the 20-25 players that are in the first team that most football clubs have to pick from.
As I suggested in the post you quoted from... we don't survive League One - not because of who is in the starting XI, but the depth beyond that. We don't have half a squad capable of staying in this division and we barely have one that could survive in the league below. We lack the depth.