Wrong, their defense is a 100 times better and it has a lot to do with Pop playing a lot less small ball and players like RJ and Bogans stepping up in that department.
As for PD, the Spurs had a pretty cupcake schedule through most of the season, and they were always good at dominating the sub .500 teams of the league. Which is why they have the toughest schedule to close out the season, to make up for the games they've been coasting on the bottom feeders all season long. The Spurs PD from 3 months was definitely inflated due to the compe ion they faced.