The SEC commissioner presumably doesn't speak without some sense that the teams in the conference are generally on board. And, as can be seen in the link, the SEC says if they don't get their way in areas like more autonomy for the power conferences (SEC, Pac-12, Big 12, Big 10, ACC), then they would move to set up a new subdivision. This will be new math. Normally the higher the number, the smaller the school offerings in athletics (D-3 is not D-1). But now D-4 would be where the January bowl teams reside. My guess is that Block would go along, without knowing anything about this, because he would think D-4 has even less athletic emphasis than D-3.