I get the philosophy of having your C play on the perimeter. If he can knock down the 3, that means he has to be respected (guarded), which in turns draws the opponent's C out of the paint (where he's no good to his team), thus opening up the lane for our beastly PF.
However, when you fail to take advantage of the WIDE OPEN paint... Then what's the point?
I think what defines D'antoni, in my eyes, are 2 things I've witnessed.
1) He subs guys in and out, regardless of play. If a player is hot, he yanks him anyway (Walker). If a player is cold (he's free to shoot away).
2) Against MIA, Shumpert got pulled from the game after he fouled Wade. Good, clean foul. Shump prevented a dunk, got under Wade's skin. What's his reward? He goes to the bench. There have been times the rookie missed bad shot after bad shot, and missed badly, but NEVER did I see him get yanked.