This kind of says it all. The importance of one individual player and the impact they can make on a team is much greater in the NBA than in any other sport. I don't think, otherwise, the list gives us any insight into a broke system, since you have the NFL with a hard cap and unguaranteed deals, and MLB with no cap and guaranteed deals with the same number of champions. I will try to find it again, but I do recall seeing a breakdown where baseball had a bigger diversity in teams making the playoffs than the NFL or NBA have. I feel like the NBA had a higher change than the NFL also, but I could be wrong. Just to go along with the you can't win it if you don't make it comment from above.
Who the hell is talking about 2007? The Colts won 10 games, their division and were a contending team with super bowl hopes last year in 2010! Besides Peyton that team is very much the same and they don't have a single win. Reggie Wayne and Dallas Clark now appear to be scrub NFL players while Peyton made them look like they belonged in the hall of fame.
Some of this has been due to dominant teams, but there's also been resurgences in certain franchises that seem to be coincidence. like the 80's Celtics and 00' Celtics. The Pistons in the 90's....and now the Heat seem to be on track to continue this trend.