Were the Golden State Warriors 'lucky' to win the NBA title?

It's the story that won't go away, thanks to the vocal critics of the Golden State Warriors, particularly Los Angeles Clippers coach Doc Rivers and his shooting guard, J.J. Redick.

Some four months after the conclusion of the NBA Finals, the Warriors are still shouting down those arguing they were fortunate in the playoffs because of the players and teams they didn't have to face along the way to the title.

Do those criticisms hold merit?