Nixluva, Phil Jackson was trolling GS and many other teams that shoot the 3pter, however, many of them do not JUST RELY on 3pter, just as Dantoni didn't just rely on it, it is up to the players to decide when to penetrate when to kick out etc...
However, having 3pt shooters are essential for court spacing, along with more room to operate, in which Phil Jackson just trolled and you are defending, and you have defended Dantoni while many teams now have adapted to that style of play because it could lead to easy penetrate, room to operate, and if not a WIDE OPEN 3pter
We do not have talents such as Shaq, Kobe, MJ/Pippen, or even Pau Gasol/Odom/Kukoc, so like some have stated here, it will lead to either the long mid range shot for a 2pter, or wide open 3pter
I would much rather have a wide open 3pt shot than a contested 2pt shot that is a long range shot...
The point in all these systems is to have a philosophy/system in place that leads to better anticipation and high % shots, for role players to stay engaged with the team, with the abilility to try to get a OFFENSIVE rebound
there are teams now that can put 4 to even 5 3pt shooters on the floor together and the league has changed from the traditional sense of 2 BIGS that do not have the ability to go out to defend a 3pt shot
I do not believe in NOT contesting 3pt shots at all, all the teams that go far in the playoffs have the ability to defend the 3pt shot, showing how the league has evolved and the direction we must go if we want to contend...
Now if you happen to be defending a weaker 3pt shot, like Tony Allen, yes I want that guy to cheat on DEFENSE more, while if a player was defending Kyle Korver I do not want that guy to cheat and generally look to stick to Korver
However, I wouldn't exactly say we should NOT guard Tony Allen at all like he was Shaq at the 3pt line