The Golden State Warriors held the Orlando Magic to 115.8 points per 100 possessions — a defensive rating that would rank 16th in the league without garbage time, per Cleaning The Glass. Based on that information, their defensive performance would be considered quite mediocre.
But I would argue that their 121-115 win against the Magic was built on a solid foundation of defense. The Magic did have a bit of variance favor them on some of the looks they got on offense, especially from beyond the arc — they shot 13-of-34 (38.2%) on threes, better than their season averages on attempts (30.