You will concede, though, that there is at least something to their winning the titles that comes from the team itself, right? It's not like Anthony Peeler and Elden Campbell were ever getting easy calls and steamrolling to championships.
Of course. The Lakers were a credible championship-caliber team, of which there are several each year. In their additional favor, they have two highly marketable superstars, which are good for TV ratings; and of course they are in a huge media market.
Ask yourself this: How come basketball is the only major sport that never has a "Cinderella" champion? Because it is the sport where the outcomes are closest to being predetermined by officiating bias. Note that I said "closest to"; the games do still have to be played.
But in any case where the talent is about equal, the subjective assessment of the officials will determine the outcome most of the time, and that assessment will almost always favor the team whose victory will most help the league's image. In baseball, football, or hockey, the referees can't have as much influence, and that's the main reason that they don't.