Well, you can't sustain that kind of ball pressure for most of the game, it takes away to much energy from your players, so that speculation was quite off.
Secondly, if I remember correctly, they tried to do it in the 4th a couple of times and were unsuccessful, mainly because the Celtics were much more aggressive and protected the ball better. I may be mistaken, but I'm pretty sure I saw their attempt, and since they failed their attempt might've gone unnoticed. I'm playing it from memory, so I might be mistaken but again I think I saw them attempt some traps on us during the 4th and were simply unsuccessful.