No one has disappeared, at least I haven't. And I'm still waiting for someone to have an accurate point about why it's not working. Half the time you guys are saying DCs have stopped Griffin when he runs it and he's only ran it twice this season.
Kaep has been exposed in it because, like Joe Webb in the playoffs last year, it isn't effective if the QB can't be a credible threat from the pocket. This is why Griffin worked it to so well last season, because in his post read of the LB, he also has a third option to pull it back and throw. Which is usually a mid-range crossing pattern in the Shanahan offense. Kaep hasn't proven to be nearly as deadly. His footwork is inconsistent, and he's even thrown passes with his torso facing the sideline and not down the field. If he doesn't have a clean pocket, he's toast.
The only wrinkle I've seen from DCs, which I saw last week against Kaepernick, is defenses are running another LB into the flat, while the LB Kaep was reading takes Gore. Essentially using two defenders to defend it instead of one. I believe that will remain to be an effective method of defending it, just as long as the QB doesn't burn you by passing to the vacated area of the field.