In the playoffs matchups and top players mean a heck of a lot more than how many games the teams won in the regular season.
Detroit, Atlanta, and Toronto are fine teams.
But if I'm a coach preparing a postseason game plan, I'd much prefer to figure out how to over come those perfectly fine teams lacking superstars. Because no matter how discombobulated the Rockets were, or how mediocre on defense the Blazers were, James Harden can win playoff games almost entirely on his own. Damian Lillard can become borderline unstoppable, even on the road.
I suspect the Spurs werent comforted much that they won so many more regular season games than the Thunder, much as the 2010 Cavs and Magic found little comfort in their regular season exploits when they were embarrassed by the Celtics.
The Cavs will get to the Finals without ever having the figure out how to deal with truly dominant individual opponents. And Lebron James will never have had to defend such a player, or face a single wing defender with anything resembling the tools required to slow him down one iota.