They have basically legislated defense out of the league since like 2005.
Sad but very true.
It was teams like the Pistons, Spurs, Pacers, & Nets of the early 2000's that they perhaps thought were ruining the game with their Defense first mentalities, when in fact those in charge are too foolish to realize that it made the game exciting & entertaining, in my opinion.
For example, one of my favorite series' of all time was the 2004 Eastern Conference Finals with the Pistons & Pacers, where you had to earn every bucket you got, where every shot was contested (26 combined blocks in game 2 alone), and nothing was given to the players. It helped showcase the true talent of the players on both teams, on both sides of the ball.
The powers that be simply didn't care for teams like the Pistons that year, holding teams under 70 points, 11 times during the season, with 5 of those coming in a row, or final scores being the 69-65 type, sadly. That, in my opinion, was some of the best basketball to watch, even if it didn't appeal to some of the higher scoring markets.