Yep. And the Spurs under Pop have always been among the worst in the league at offensive rebounds, and among the best at defensive boards - by design. Pop wants them to get a high percentage shot, and get back on defense when they miss. Shoot a higher percentage than the other team, rake the defensive glass, and don't turn the ball over.
Every season or two, someone new here notices their poor ORB statistics, and starts ing about it. It's never going to change, as long as Pop is coach. He doesn't want guys camping out, waiting for a chance at an offensive rebound. Aldridge gets a lot of put-backs, and I've gotten the impression that Pop is giving him a little slack to see how it works. But that has never been the Spurs' style of play in the Popovich era.