8th seed, 7th seed, makes no difference. The team had a losing record and was swept in the first round. Stevens has a losing record overall as a head coach. That isn't really something to brag about.
Look, I like Stevens as a head coach, I think he has a bright future. But professional basketball is about the players far more than it is the coaches. The greatest coach in the world won't win squat without superstar talent. But on the other hand, there have been more than a few mediocre coaches that have won NBA titles.