No NFL titles for the Patriots since they were caught in Spygate. Perhaps it's a coincidence.
I'm torn on how I feel about that to be honest.
If you look at the six years pre-SpyGate which are 2001-2006 (lets ignore 2000 as it was BB's first year and he didn't have Brady), and compare them to the six years after SpyGate which are 2007, 2009-2013 (lets ignore 2008 without Brady) and the results are very similar.
2001: 11-5 (won Super Bowl)
2002: 9-7 (no playoffs)
2003: 14-2 (won Super Bowl)
2004: 14-2 (won Super Bowl)
2005: 10-6 (won division, lost in Divisional Round)
2006: 12-4 (lost in AFC championship)
So we've got 70-26 in those six years. 3-0 in the Super Bowl, one loss in AFC Champ, 1 loss in Divisional Round, 1 year of no playoffs.
2007: 16-0 (lost in Super Bowl)
2009: 10-6 (lost in Wild Card round)
2010: 14-2 (lost in Divisional Round)
2011: 13-3 (lost in Super Bowl)
2012: 12-4 (lost in AFC championship)
2013: 12-4 (currently in AFC championship)
So we've got 77-19 in those six years. 0-2 in the Super Bowl, one loss in AFC Champ, 1 loss in divisional round, 1 loss in Wild Card round, and of course one year yet to play out.
I think its more of the Pats catching more breaks in their 2001, 2003, 2004 Super Bowls, and not catching them in the 2007 and 2011 Super Bowls than anything else. Really all five of those Super Bowls could have gone either way. The record post-SpyGate is actually better, and how far they have gone in the playoffs is virtually the same as before SpyGate. Really just comes down to winning the close games in the Super Bowls which could be more of a product of the fact that they haven't had the dominant run game and defense like they used to have.