Well I definitely played basketball and know the rules and fundamentals of the game. Basically what you are saying is that any player or teams that play good defense are now going to suffer, in effect defense suffers. That simply isn't true. Good defense will still be successful and IMO Craft will excel at playing "good" defense and adjusting his game.
The NBA changed their rules similar to what college is doing now. Guess who played in the NBA Finals? The San Antonio spurs, known for solid defense. The good individual defenders in the NBA game were still good defenders after they instituted rules changes. Players adjust, teams adjust but defense will still be played