You're right, he did take over games. There is no debate or arguing that. Daniels' skills and ability hid the lack of a run game. True. But I disagree with the rest of your take. It's Joe Sloan's offense. He designs and calls the plays. BK is an offensive minded coach though. There was clearly a drop off on offense but everyone knew that was going to happen especially when you lose Daniels, Nabors and Thomas. Even with that drop off, it was still one of the better offenses in college football. Nuss was one of the better Qbs even when he fell off. Denbrock left and went back to ND, Sloan was promoted to OC. His only play calling experience prior to last year was while he was at LaTech. Big difference jumping to the SEC. Once BK got involved with the offense, things got better. The stats and level of play prove that.
But I do hear ya and agree some with what you said.