Does nobody just want to believe those 8-8 defenses were as bad as they were? I mean, franchise worst. In the running for some of the worst in the league.
And we went 8-8 in three consecutive seasons with a very good QB, a rebuilding OL and still managed to compete for the division every season. These are reasons for coming up short. Not excuses. The fans acting like those 2011, 2012 teams ought to have been shoe-ins for the playoffs and further are the ones remembering things more rosily than they actually were, not the other way around.
And, as a sideline...there's no reason to be a 'homer' for a coach. Either the guy can coach or he can't. If he can coach, then there have to be other reasons why the team isn't getting it done. You're not being a homer fan who you say 'the problem is A, and not B.' It doesn't paint a rosier picture to say the HC or the QB is good, but the defense is bad. But it just doesn't make any sense to watch a secondary get splintered in successive playoff losses by a QB who has too much time to sit back there and pick it apart and keep concluding the problem is with the offensive play calling.