The Rockets live and die by the 3 though. They shoot it if they are up and shoot it when behind. If it falls they win if it doesn't they lose.
That's the problem with that style of basketball. Maximize possessions, spread the floor, find a good look for a 3. If it's going in it looks GREAT.
When guys are going 2 for 9 from 3, it looks awful and that team usually gets blown out.
In comparison to a team like the Celtics that depend on multiple sources of offensive production, and the 3 point shot is just a luxury. Not saying Boston is better than Houston, but if the Rockets aren't on target from deep they really don't have any other way to create offense, besides Capela inside on a lob off a roll or something very rigid.
The Warriors are a long ball oriented team as well but they have Durant, Draymond, and a bunch of other bench players who can score in a pinch (Livingston did Harden DIRTY off the dribble and finished at the rim....).