If someone like those centers plat against gsw, they will just go big with bogut and ezeli. Gsw will still beat you with their shooting, have green play the 4 instead. With refs allowing for lesser contacts it limita the defensive ability of those guys due to potential foul trouble. With these rule changes, the meta has evolved. Sure there are no great post players,but that iant the only reason. 3 pt ahooting is at a premium that even if you score an easy 2 if playing with a slow plodding big allows your opponent to shoot open 3s you are screwed.