No. Look at the replay. Harden got blocked, nene got hit on the arm. I saw the replay a bunch of times.
If that's 'terrible missed call' in your book, you must not watch a lot of basketball. It was pretty standard end of game officiating for the NBA.
Not to mention the fact that a foul call the doesn't improve the Rockets chances there by much - Nene is under 60% from the line.