They were overachieving because they thought they had a chance? That isn't at all overachieving. Thinking something is not overachieving. Playing against a good team is not overachieving. You are missing the meaning of the phrase.Overachieving "perform better or achieve more success than expected." They have been a consistent playoff team for years and had Lillard take the next step and they got a 3 seed and made it to the WCF. Maybe they overachieved a little compared to previous seasons, but overachieving has nothing to do with what you think you can do.
And Houston will never be a real threat to anyone in the playoffs when their entire game is based around flopping. You don't get bullshit calls for acting like a fish in the playoffs.