Not too mention the current ownership is new. Some people, especially the national writers, get lazy and say but they are still owned by the Ford's. The win at Green Bay was the turning point for me. They were 3-27 there in the past 30 years. This a team that went into Green Bay and let Matt Flynn shred them. They go in this year in what was essentially a playoff game and win and end Rodgers Packers career. That was when this team experienced success and realized their potential.
I also read, and I think it was posted here, that the better teams in the league are young and rely on younger players. The Chiefs aren't an old team. The Bengals aren't old, and speaking of the Bengals, there's a franchise that had a longer playoff winless streak than the Lions until they suddenly experienced success and realized their potential.