You could say that about almost any team. Looks at Seattle and the Jets. The NFL season is so short, that some worthy teams miss the playoffs every year. It usually breaks down to what division you are in. You're lucky if you're in the NFC West or AFC West. You're screwed if you're in the AFC South.
It's hard for me to say we snuck in. We had a ton of bad breaks, missed/made field goals, questionable calls, etc (as most teams do). This year was just particularly crazy because it seemed like all of losses came down to 1 or 2 plays. It's hard for me to say that we "snuck into" the playoff, when Seattle & KC got in.