not 規則上變化, it is the how the refs blow their whistle.

not trying to argue with you whether Warriors is the best team in the history or  not. Under the current way how refs blow their whistle, Warriors is the best. That is y many teams are trying to copy them. No great inside player appear in recent years, not because there is no such player, but the big guy cannot play the way the big guys played 10 years ago.