His efficiency is absurd. His career field goal percentage is 72.6%. The best career FG% in NBA history (of those who qualify) is DeAndre Jordan, at 67.4%. So about 5 percentage points worse than Rob.
With numbers that high that doesn't sound like much, or rather isn't perceived as much. But the difference between a 40% shooter from the field and 45% shooter from the field is enormous.
He doesn't shoot much, and he likely never will. But he's going to score on almost 3 of every 4 shots. Crazy