The 'gosh darn issue' continues to be the quality of the personnel on defense. I thought I made that clear.
Sidestepping your straw men, since nobody ever suggests we've got he best HC or best coordinators, the team's spent more resources on offense, has hit on those resources at a higher rate than the rest of the league, and has gotten better in the process. We've actually improved on defense during that time, as well. We just started out with a franchise-worst unit in 2012 and have spent fewer resources there, so it's talent longer.
You talk about 'actualizing greatness' sarcastically, but the team won 13 games last year, and the guy is the reigning NFL CotY. It's not like the progress hasn't been obvious to anybody who isn't either ****posting for giggles or has their eyes shut because they don't like the idea of being wrong on the topic after all this time of being so sure they were right.