imho it is more the problem, of how much you sacrifice when you guess wrong. There you get crushed with 2-3, but still play solid with 3-2. in the old engine, the rebounding margin, makes it the opposite way for the 2-3 which works solid there against outside tactics. So 3-2 was an underdog tactic, for teams who don't have to loose much when they are wrong, and you avoided to play when you was superior.