Yeah, the spurs have had some disappointing playoff moments since they won their last championship in 2007.
2008: 3 seed, Lost in wcf.
2009: 3 seed, Lost in first round
2010: 7 seed, Lost in second round
2011: 1 seed, Lost in first round
2012: 1 seed, Lost in wcf
By comparison, the Lakers -
2008: 1 seed, Lost in finals
2009: 1 seed, Won championship
2010: 1 seed, Won championship
2011: 2 seed, Lost in second round
2012: 3 seed, Lost in second round.
Lakers clearly the best in the west the last 5 years, but on the way down. OKC is clearly the next powerhouse western conference team. The Spurs, meanwhile, have been a mess in the playoffs. It's understandable that their fans whine and moan about the Lakers, who are actually starting to put things together.
Not saying we are better than them or we will beat them in the playoffs, just saying they have a good reason to be scared.